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Anatomy > Anatomy_ Muscle Tables_1 > Flashcards

Anatomy_ Muscle Tables_1 Flashcards

1
Q

Epicranius (Occipitofrontalis): Description

A

Bipartite muscle consisting of frontal and occipital bellies connected by the epicranial aponeurosis. The alternate actions of these two muscles pull scalp anteriorly and posteriorly

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2
Q

frontal belly: description

A

covers forehead and dome of skull; no bony attachments

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3
Q

occipital belly: description

A

overlies posterior occiput; by pulling on the epicranial aponeuronsis, fixes origin of the frontal belly

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4
Q

corrugator supercilii: description

A

small muscle to eyebrow; acts with orbicularis oculi

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5
Q

orbicularis oculi: description

A

thin, flat sphincter muscle of eyelid; surrounds rim of the orbit

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6
Q

zygomaticus: description

A

muscle pair extending diagonally from cheekbone to corner of mouth

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7
Q

orbicularis oris: description

A

multilayered muscle of the lips with fibers that run in many different directions; most run circularly

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8
Q

mentalis: description

A

one of the muscle pair forming a V-shaped muscle mass on chin

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9
Q

platysma: description

A

unpaired, thin, sheetlike superficial neck muscle; not strictly a head muscle, but plays a role in facial expression

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10
Q

risorius: description

A

slender muscle inferior and lateral to zygomaticus

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11
Q

levator labii superioris: description

A

thin muscle between orbicularis oris and inferior eye margin

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12
Q

depressor labii inferioris: description

A

small muscle running from mandible to lower lip

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13
Q

depressor anguli oris: description

A

small muscle lateral to depressor labii inferioris

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14
Q

buccinator: description

A

thin, horizontal cheek muscle; principal muscle of cheek; deep to masseter

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15
Q

masseter: description

A

powerful muscle that covers lateral aspect of ramus of mandible

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16
Q

temporalis: description

A

fan-shaped muscle that covers parts of the temporal, frontal, and parietal bones

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17
Q

medial pterygoid: description

A

deep two-headed muscle that runs along internal surface of mandible and is largely concealed by that bone

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18
Q

lateral pterygoid: description

A

deep two-headed muscle; lies superior to medial pterygoid muscle

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19
Q

genioglossus: description

A

fan-shaped muscle; forms bult of inferior part of tongue; its attachment to mandible prevents tongue from falling backward and obstructing respiration

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20
Q

hyoglossus: description

A

flat, quadrilateral muscle

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21
Q

styloglossus: description

A

slender muscle running superiorly to and at right angles to hyoglossus

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22
Q

digastric: description

A

consists of two bellies united by an intermediate tendon, forming a V shape under the chin

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23
Q

stylohyoid: description

A

slender muscle below angle of jaw; parallels posterior belly of digastric muscle

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24
Q

mylohyoid: description

A

flat, triangular muscle just deep to digastric muscle; this muscle pair forms a sling that forms the floor of the anterior mouth

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25
Q

geniohyoid: description

A

narrow muscle in contact with its partner medially; runs from chin to hyoid bone deep to mylohyoid

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26
Q

sternohyoid: description

A

most medial muscle of the neck; thin; superficial except inferiorly, where covered by sternocleidomastoid

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27
Q

sternothyroid: description

A

lateral and deep to sternohyoid

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28
Q

omohyoid: description

A

straplike muscle with two bellies united by an intermediate tendon; lateral to sternohyoid

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29
Q

thyrohyoid: description

A

appears as a superior continuation of sternothyroid muscle

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30
Q

superior, middle, and inferior pharyngeal constrictors: description

A

composite of three pair muscles whose fibers run circularly in pharynx wall; arranged so that the superior mescle is innermost and inferior one is outermost; substantial overlap

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31
Q

sternocleidomastoid: description

A

two-headed muscle located deep to platysma on anterolateral surface of neck; delineate limits of anterior and posterior triangles of the neck

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32
Q

scalences: description

A

located more laterally than anteriorly on neck; deep to platysma and sternocleidomastoid

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33
Q

splenius: description

A

broad bipartite superficial muscle (capitis and cervicis parts) extending from upper thoracic vertebrae to skull

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34
Q

iliocostalis: description

A

most lateral muscle group of erector spinae muscles; extend from pelvis to neck

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35
Q

longissimus: description

A

intermediate tripartite muscle group of erector spinae; extend by many muscle slips from lumbar region to skull; mainly pass between transverse processes of the vertebrae

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36
Q

spinalis: description

A

most medial muscle column of erector spinae; cervicis usually rudimentary and poorly defined

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37
Q

semispinalis: description

A

composite muscle forming part of deep layer of inttrinsic back muscles; extends from thoracic region to head

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38
Q

quadratus lumborum: description

A

fleshy muscle forming part of posterior abdominal wall

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39
Q

external intercostals: description

A

11 pairs lie between ribs; fibers run obliquely (down and medial) from each rib to rib below; in lower intercostal spaces, fibers are continuous with external oblique muscle forming part of abdominal wall

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40
Q

internal intercostals: description

A

11 pairs lie between ribs; fibers run deep to and at right angles to those of external intercostals (i.e., up and medial); lower internal intercostals muscles are continuous with fibers of internal oblique muscle of abdominal wall

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41
Q

diaphragm: description

A

broad muscle pierced by the aorta, inferior vena cava, and esophagus; forms floor of thoracic cavity; in relaxed state is dome-shaped; fibers converge from margins of thoracic cage toward a boomerange-shaped central tendon

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42
Q

external oblique: description

A

largest and most superficial of the three lateral muscles; fibers run downward and medially (same direction outstretched fingers take when hands put into pants pockets); aponeurosis turns under inferiorly, forming inguinal ligament

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43
Q

internal oblique: description

A

most fibers run superiorly and medially; the muscle fans such that its inferior fibers run inferiorly and medially

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44
Q

transversus abdominis: description

A

deepest (innermost) muscle of abdominal wall; fibers run horizontally

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45
Q

rectus abdominis: description

A

medial muscle pair; extend from pubis to rib cage; ensheathed by aponeuroses of lateral muscles; segmented by three tendinous intersections

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46
Q

levator ani: description

A

“broad, thin, tripartite muscle (puborectalis, pubococcygeus, and iliococcygeus parts); its fibers extend inferomedially, forming a muscular ““sling”” around the prostate (or vagina), urethra, and anorectal junction before meeting in the median plane”

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47
Q

coccygeus: description

A

small triangular muscle lying posterior to levator ani; forms posterior part of pelvic diaphragm

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48
Q

deep transverse perineal muscle: description

A

together the pair spans distance between ischial rami; in females, lies posterior to vagina

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49
Q

external urethral sphincter: description

A

muscle encircling urethra and vagina (female)

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50
Q

ischiocavernosus: description

A

runs from pelvis to base of penis or clitoris

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51
Q

bulbospongiosus: description

A

encloses base of penis (bulb) in males and lies deep to labia in females

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52
Q

superficial transverse perineal muscle: description

A

paired muscle bands posterior to urethral (and in females, vaginal) opening; variable; sometimes absent

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53
Q

pectoralis minor: description

A

flat, thin muscle deep to pectoralis major

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54
Q

serratus anterior: description

A

fan-shaped muscle; lies deep to scapula, deep and inferior to pectoral muscles on lateral rib cage; forms medial wall of axilla, origins have serrated, or sawtooth, apperance

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55
Q

subclavius: description

A

small cylindrical muscle extending from rib 1 to clavicle

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56
Q

trapezius: description

A

most superficial muscle of poterior thorax; flat and triangular; upper fibers run inferiorly to scapula; middle fibers run horizontally to scapula; lower fibers run superiorly to scapula

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57
Q

levator scapulae: description

A

located at back and side of neck, deep to trapezius; thick, straplike muscle

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58
Q

rhomboids: description

A

two rectangular muscles lying deep to trapezius and inferior to levator scapulae; rhomboid minor is the more superior muscle

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59
Q

pectoralis major: description

A

large, fan-shaped muscle covering upper portion of cheste; forms anterior axillary fold; divided into clavicular and sternal parts

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60
Q

deltoid: description

A

thick, multipennate muscle forming rounded shoulder muscle mass; a site commonly used for intramuscular injection, particularly in males, where it tends to be quite fleshy

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61
Q

latissimus dorsi: description

A

broad, flat, triangular muscle of lower back (lumbar region); extensive superficial origins; covered by trapezius superiorly; contributes to the posterior wall of axilla

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62
Q

teres major: description

A

thick, rounded muscle; located inferior to teres minor, helps to form posterior wall of axilla (along with latissimus dorsi and subscapularis)

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63
Q

subscapularis: description

A

a rotator cuff muscle; forms part of posterior wall of axilla; tendon of insertion passes in front of shoulder joint

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64
Q

supraspinatus: description

A

a rotator cuff muscle; named for its location on posterior aspect of scapula; deep to trapezius

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65
Q

infraspinatus: description

A

a rotator cuff muscle; partially covered by deltoid and trapezius; named for its scapular location

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66
Q

teres minor: description

A

a rotator cuff muscle; small, elongated muscle; lies inferior to infraspinatus and may be inseperable from that muscle

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67
Q

coracobrachialis: description

A

small, cylindrical muscle; located in anterior compartment of arm

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68
Q

triceps brachii: description

A

large fleshy muscle; the only muscle of posterior compartment of arm; three-headed origin; long and lateral heads lie superficial to medial head

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69
Q

anconeus: description

A

short triangular muscle; closely associated with distal end of triceps on posterior humerus

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70
Q

brachioradialis: description

A

superficial muscle of lateral forearm; forms lateral boundary of cubital fossa; extends from distal humerus to distal forearm; develops from extensor muscle group; functionally a flexor

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71
Q

biceps brachii: description

A

two-headed fusiform muscle; bellies unite as insertion point is approached; tendon of long head helps stabilize shoulder joint

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72
Q

brachialis: description

A

strong muscle that is immediately deep to biceps brachii on distal humerus

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73
Q

pronator teres: description

A

two-headed muscle; seen in superficial view between proximal margins of brachioradialis and flexor carpi radialis; forms medial boundary of cubital fossa

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74
Q

flexor carpi radialis: description

A

runs diagonally across forearm; midway, its fleshy belly is replaced by a flat tendon that becomes cordlike at wrist

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75
Q

palmaris longus: description

A

small fleshy muscle with a long insertion tendon; often absent; may be used as guid to find median nerve that lies lateral to it at wrist

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76
Q

flexor carpi ulnaris: description

A

most medial muscle of this grop; two-headed; ulnar nerve lies lateral to its tendon

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77
Q

flexor digitorum superficialis: description

A

two-headed muscle; more deeply placed, overlain by superficial muscles but visible at distal end of forearm

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78
Q

flexor pollicis longus: description

A

partly covered by flexor digitorum superficialis; lies lateral and parallel to flexor digitorum profundus

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79
Q

flexor digitorum profundus: description

A

extensive origin; overlain entirely by flexor digitorum superficialis

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80
Q

pronator quadratus: description

A

deepest muscle of distal forearm; passes downward and laterally; only muscle that arises solely from ulna and inserts solely into radius

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81
Q

extensor carpi radialis longus: description

A

parallels brachioradialis on lateral forearm, and may blend with it

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82
Q

extensor carpi radialis brevis: description

A

somewhat shorter than extensor carpi radialis longus and lies deep to it

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83
Q

extensor digitorum: description

A

lies medial to extensor carpi radialis brevis; a detached portion of this muscle, called extensor digiti minimi, extends little finger

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84
Q

extensor carpi ulnaris: description

A

most medial of superficial posterior muscles; long, slender muscle

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85
Q

supinator: description

A

deep muscle at posterior aspect of elbow; largely concealed by superficial muscles

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86
Q

abductor pollicis longus: description

A

lateral and parallel to extensor pollicis longus; just distal to supinator

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87
Q

extensor pollicis brevis and longus: description

A

deep muscle pair with a common origin and action; overlain by extensor carpi ulnaris

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88
Q

extensor indicis: description

A

tiny muscle arising close to wrist

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89
Q

abductor pollicis brevis: description

A

lateral muscle of thenar group; superficial

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90
Q

flexor pollicis brevis: description

A

medial and deep muscle of thenar group

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91
Q

opponens pollicis: description

A

deep to adbuctor pollicis brevis, on metacarpal I

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92
Q

adductor pollicis: description

A

fan-shaped with horizontal fibers; distal to otehr thenar muscles; oblique and transverse heads

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93
Q

abductor digiti minimi: description

A

medial muscle of hypothenar group; superficial (hand)<br></br>most lateral of the three superficial sole muscles (foot)

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94
Q

flexor digiti minimi brevis: description

A

lateral deep muscle of hypothenar group (hand)<br></br>covers metatarsal V (foot)

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95
Q

opponens digiti minimi: description

A

deep to abductor digiti minimi

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96
Q

lumbricals: description

A

four worm-shaped muscles in palm [or sole], one to each finger /toe; unusual because they originate from the tendons of another muscle

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97
Q

palmar interossei: description

A

four long, cone-shaped muscles in the spaces between the metacarpals; lie ventral to the dorsal interossei

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98
Q

dorsal interossei: description

A

four bipennate muscles filling spaces between the metacarpals; deepest palm muscles, also visible on dorsal side of hand

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99
Q

iliacus: description

A

large fan-shaped, more lateral muscle (of iliopsoas)

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100
Q

psoas major: description

A

longer, thicker, more medial muscle of the pair (of iliopsoas). (Butchers refer to this muscle, in beef or pork, as the tenderloin)

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101
Q

tensor fasciae latae: description

A

enclosed between fascia layers of anterolateral aspect of thigh; functionally associated with medial rotators and flexors of thigh

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102
Q

sartorius: description

A

straplike superficial muscle running obliquely across anterior surface of thigh to knee; longest muscle in body; crosses both hip and knee joints

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103
Q

rectus femoris: description

A

superficial muscle of anterior thigh; runs straight down thigh; longest head and only muscle of group to cross hip joint

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104
Q

vastus lateralis: description

A

largest head of the group, forms lateral aspect of thigh; a common intramuscular injection site

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105
Q

vastus medialis: description

A

forms inferomedial aspect of thigh

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106
Q

vastus intermedius: description

A

obscured by rectus femoris; lies between vastus lateralis and vastus medialis on anterior thigh

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107
Q

pectineus: description

A

short, flat muscle; overlies adductor brevis on proximal thigh; abuts adductor longus medially

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108
Q

gracillis: description

A

long, thin, superficial muscle of medial thigh

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109
Q

adductor longus: description

A

overlies middle aspect of adductor magnus; most anterior of adductor muscles

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110
Q

adductor brevis: description

A

in contact with obturator externus muscle; largely concealed by adductor longus and pectineus

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111
Q

adductor magnus: description

A

a traingular muscle with a broad insertion; is a composite muscle that is part adductor and part hamstirng in action

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112
Q

gluteus maximus: description

A

largest and most superficial of gluteus muscles; forms bulk of buttock mass; fascicles are thick and coarse; a site of intramuscular injection (dorsal gluteal site); overlies large sciatic norve; covers ischial tuberosity only when standing; when sitting, moves superiorly, leaving ischial tuberosity exposed in the subcutaneous position

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113
Q

gluteus medius: description

A

thick muscle largely covered by gludeus maximus; important site for intramuscular injections (ventral gluteal site); considered safer than dorsal gluteal site because there is less change injuring sciatic nerve

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114
Q

gluteus minimus: description

A

smallest and deepest of gluteal muscles

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115
Q

biceps femoris: description

A

most lateral muscle of the group (hamstrings); arises from two heads

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116
Q

semitendinosus: description

A

lies medial to biceps femoris; its long, slender tendon begins about two-thirds of the way down thigh

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117
Q

semimembranosus: description

A

deep to semitendinosus

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118
Q

piriformis: description

A

pyramidal muscle located on posterior aspect of hip joint; infernal to gluteus minimus; issues from pelvis via greater sciatic notch

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119
Q

obturator exterus: description

A

flat, triangular muscle deep in upper midal aspect of thigh

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120
Q

obturator internus: description

A

surrounds obturator foramen within pelvis; leaves pelvis via lesser sciatic notch and turns acutely forward to insert on femur

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121
Q

gemellus: description

A

two small muscles with common insertions and actions; considered extrapelvic portions of obturator internus

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122
Q

quadratus femoris: description

A

short, thick muscle; most inferior of lateral rotator muscles; extends laterally from pelvis

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123
Q

tibialis anterior: description

A

superficial muscle of anterior leg; laterally parallels shaprt anterior margin of tibia

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124
Q

extensor digitorum longus: description

A

unipennate muscle on anterolateral surface of leg; lateral to tibialis anterior muscle

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125
Q

fibularis (peroneus) tertius: description

A

small muscle; usually continuous and fused with distal part of extensor digitorum longus; not always present

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126
Q

extensor hallucis longus: description

A

deep to extensor digitorum longus and tibialis anterior; narrow origin

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127
Q

fibularis (peroneus) longus: description

A

superficial lateral muscle; overlies fibula

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128
Q

fibularis (peroneus) brevis: description

A

smaller muscle; deep to fibularis langus; enclosed in a common sheath

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129
Q

gastrocnemius: description

A

superficial muscle of pair (triceps surae); two prominent bellies that form proximal curve of calf

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130
Q

soleus: description

A

broat, flat muscle, deep to gastrocnemius on posterior surface of calf

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131
Q

plantaris: description

A

generally a small, feeble muscle, but varies in size and extent; may be absent

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132
Q

popliteus: description

A

thin, triangular muscle at posterior knee; passes downward and medially to tibial surface

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133
Q

flexor digitorum longus: description

A

long, narrow muscle; runs medial to and partially ovenlies tibialis posterior

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134
Q

flexor hallucis longus: description

A

bipennate muscle; lies lateral to inferior aspect of tibialis posterior

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135
Q

tibialis posterior: description

A

thick, flat muscle dep to soleus; placed between posterior flexors

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136
Q

extensor digitorum brevis: description

A

small, four-part muscle on dorsum of foot; deep to the tendons of extensor digitorum longus; corresponds to the extensor indicis and extensor pollicis muscles of forearm

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137
Q

flexor digitorum brevis: description

A

(first layer, most superficial), bandlike muscle in middle of sole; corresponds to flexor digitorum sperficialis of forearm and inserts into digits in the same way

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138
Q

abductor hallucios: description

A

(first layer, most superficial), lies medial to flexor digitorum brevis (recall the similar thumb muscle, abductor pollicis brevis)

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139
Q

flexor accessorius (quadratus plantae): description

A

(second layer), retangular muscle just deep to flexor digitorum brevis in posterior half of sole; two heads

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140
Q

flexor hallucis brevis: description

A

(third layer), covers metatarsal I; splits into two bellies–recall flexor pollicis brevis of thumb

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141
Q

adductor hallucis: description

A

(third layer), oblique and transverse heads; deep to lumbricals (recall adductor pollicis in thumb)

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142
Q

plantar and dorsal interossei: description

A

(fourth layer), three plantar and four dorsal; similar to palmar and dorsal interossei of hand in lacations, attachments, and actions; however, the long axis of foot around which these muscles orienty is the secnd digit, not third

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143
Q

frontal belly: origin (O) and insertion (I)

A

O–epicranial aponeurosis<br></br>I–skin of eyebrows and root of nose

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144
Q

occipital belly: origin (O) and insertion (I)

A

O–occipital and temporal (mastoid) bones<br></br>I–epicranial aponeurosis

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145
Q

corrugator supercilli: origin (O) and insertion (I)

A

O–arch of frontal bone above nasal bone<br></br>I–skin of eyebrow

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146
Q

orbicularis oculi: origin (O) and insertion (I)

A

O–frontal and maxillary bones and ligaments around orbit<br></br>I–tissue of eyelid

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147
Q

zygomaticus: origin (O) and insertion (I)

A

O–zygomatic bone<br></br>I–skin and muscle at corner of mouth

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148
Q

orbicularis oris: origin (O) and insertion (I)

A

O–arises indirectly from maxilla and mandible; fibers blended with fibers of other facial muscles asociated with the lips<br></br>I–encircles mouth; inserts into muscle and skin at angles of mouth

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149
Q

mentalis: origin (O) and insertion (I)

A

O–mandible below incisors<br></br>I–skin of chin

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150
Q

platysma: origin (O) and insertion (I)

A

O–fascia of chest (over pectoral muscles and deltoi)<br></br>I–lower margin of mandible, and skin and muscle at corner of mouth

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151
Q

risorius: origin (O) and insertion (I)

A

O–lateral fascia associated with masseter muscle<br></br>I–skin at angle of mouth

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152
Q

levator labii superioris: origin (O) and insertion (I)

A

O–zygomatic bone and infraorbital margin of maxilla<br></br>I–skin and muscle of upper lip

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153
Q

depressor labii inferioris: origin (O) and insertion (I)

A

O–body of mandible lateral to its midline<br></br>I–skin and muscle of lower lip

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154
Q

depressor anguli oris: origin (O) and insertion (I)

A

O–body of mandible below incisors<br></br>I–skin and muscle at angle of mouth below insertion of zygomaticus

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155
Q

buccinator: origin (O) and insertion (I)

A

O–molar region of maxilla and mandible<br></br>I–orbicularis oris

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156
Q

masseter: origin (O) and insertion (I)

A

O–zygomatic arch and zygomatic bone<br></br>I–angle and ramus of mandible

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157
Q

temporalis: origin (O) and insertion (I)

A

O–temporal fossa<br></br>I–coronoid process of mandible via a tendon that passes deep to zygomatic arch

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158
Q

medial pterygoid: origin (O) and insertion (I)

A

O–medial surface of lateral pterygoid plate of sphenoid bone, maxilla, and palatine bone<br></br>I–medial surface of mandible near its angle

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159
Q

lateral pterygoid: origin (O) and insertion (I)

A

O–greater wing and lateral pterygoid plate of sphenoid bone<br></br>I–condylar process of mandible and capsule of temporomandibular joint

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160
Q

genioglossus: origin (O) and insertion (I)

A

O–internal surface of mandible near symphysis<br></br>I–inferior aspect of the tongue and body of hyoid bone

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161
Q

syoglossus: origin (O) and insertion (I)

A

O–body and greater horn of hyoid bone<br></br>I–inferolateral tongue

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162
Q

styloglossus: origin (O) and insertion (I)

A

O–styloid process of temporal bone<br></br>I–lateral inferior aspect of tongue

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163
Q

digastric: origin (O) and insertion (I)

A

O–lower margin of mandible (anterior belly) and mastoid process of the temporal bone (posterior belly)<br></br>I–by a connective tissue loop to hyoid bone

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164
Q

stylohyoid: origin (O) and insertion (I)

A

O–styloid process of temporal bone<br></br>I–hyoid bone

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165
Q

mylohyoid: origin (O) and insertion (I)

A

O–medial surface of mandible<br></br>I–hyoid bone and median raphe

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166
Q

geniohyoid: origin (O) and insertion (I)

A

O–inner surface of mandibular symphysis<br></br>I–hyoid bone

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167
Q

sternohyoid: origin (O) and insertion (I)

A

O–manubrium and medial end of clavicle<br></br>I–lower margin of hyoid bone

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168
Q

sternothyroid: origin (O) and insertion (I)

A

O–posterior surface of manubrium of sternum<br></br>I–thyroid cartilage

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169
Q

omohyoid: origin (O) and insertion (I)

A

O–superior surface of scapula<br></br>I–hyoid bone, lower border

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170
Q

thyrohyoid: origin (O) and insertion (I)

A

O–thyroid cartilage<br></br>I–hyoid bone

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171
Q

superior, middle, and inferior pharyngeal constrictors: origin (O) and insertion (I)

A

O–attached anteriorly to mandible and medial pterygoid plate (superior), hyoid bone (middle), and laryngeal cartilages (inferior)<br></br>I–posterior median raphe of pharynx

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172
Q

sternocleidomastoid: origin (O) and insertion (I)

A

O–manubrium of sternum and medial portion of clavicle<br></br>I–mastoid process of temporal bone and superior nuchal line of occipital bone

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173
Q

scalenes: origin (O) and insertion (I)

A

O–transverse processes of cervical vertebrae<br></br>I–anteriorlaterally on first two ribs

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174
Q

splenius: origin (O) and insertion (I)

A

O–ligamentum nuchae. spinous processes of vertebrae C7-T6<br></br>I–mastoid process of temporal bone and occipital bone (capitis); transverse processes of C2-C4 vertebrae (cervicis)

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175
Q

iliocostalis: origin (O) and insertion (I)

A

O–iliac crests (lumborum); inferior 6 ribs (thoracis); ribs 3 to 6 (cervicis)<br></br>I–angles of ribs (lumborum and thoracis); transverse processes of cervical vertebrae C6-C4 (cervicis)

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176
Q

longissimus: origin (O) and insertion (I)

A

O–transverse processes of lumbar through cervical vertebrae<br></br>I–transverse processes of thoracic or cervical vertebrae and to ribs superior to origin as indicated by name; capitis inserts into mastoid process of temporal bone

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177
Q

spinalis: origin (O) and insertion (I)

A

O–spines of upper lumbar and lower thoracic vertebrae<br></br>I–spines of upper thoracic and cervical vertebrae

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178
Q

semispinalis: origin (O) and insertion (I)

A

O–transverse processes of C7-T12<br></br>I–occipital bone (capitis) and spinous processes of cervical (cervicis) and thoracic vertebrae T1 to T4 (thoracis)

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179
Q

quadratus lumborum: origin (O) and insertion (I)

A

O–iliac crest and lumbar fascia<br></br>I–transverse processes of upper lumbar vertebrae and lower margin of 12th rib

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180
Q

external intercostals: origin (O) and insertion (I)

A

O–inferior border of rib above<br></br>I–superior border of rib below

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181
Q

internal intercostals: origin (O) and insertion (I)

A

O–superior border of rib below<br></br>I–inferior border (costal groove) of rib above

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182
Q

diaphragm: origin (O) and insertion (I)

A

O–inferior internal nurface of rib cage and sternum, costal cartilages of last six ribs, and lumbar vertebrae<br></br>I–central tendon

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183
Q

external oblique: origin (O) and insertion (I)

A

O–by fleshy strips from outer surfaces of lower eight ribs<br></br>I–most fibers insert into linea alba via a broad aponeurosis; some insert into pubic crest and tubercle and iliac crest

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184
Q

internal oblique: origin (O) and insertion (I)

A

O–lumbar fascia, iliac crest, and inguinal ligament<br></br>I–linea alba, pubic crest, last three or four ribs antd costal margin

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185
Q

transversus abdominis: origin (O) and insertion (I)

A

O–inguinal ligament, lumbar fascia, cartilages of last six ribs; iliac crest<br></br>I–linea alba, pubic crest

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186
Q

rectus abdominis: origin (O) and insertion (I)

A

O–pubic crest and symphysis<br></br>I–xiphoid process and costal cartilages of ribs 5-7

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187
Q

levator ani: origin (O) and insertion (I)

A

O–extensive linear origin inside pelvis from pubis to ischial spine<br></br>I–inner surface of coccyx, levator any of opposite side, and (in part) into the structures that penetrate it

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188
Q

coccygeus: origin (O) and insertion (I)

A

O–spine of ischium<br></br>I–sacrum and coccyx

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189
Q

deep transverse perineal muscle: origin (O) and insertion (I)

A

O–ischial rami<br></br>I–midline perineal body; some fibers into vaginal wall in females

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190
Q

external urethral sphincter: origin (O) and insertion (I)

A

O–ischiopubic rami<br></br>I–midline raphe

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191
Q

ischiocavernosus: origin (O) and insertion (I)

A

O–ischial tuberosities<br></br>I–crus of corpus cavernosa of penis or clitoris

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192
Q

bulbospongeiousus: origin (O) and insertion (I)

A

O–perineal body and midline raphe of penis<br></br>I–anteriorly into corpus cavernosa of penis or clitoris

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193
Q

superficial transverse perineal muscle: origin (O) and insertion (I)

A

O–iscial tuberosity<br></br>I–perineal body

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194
Q

pectoralis minor: origin (O) and insertion (I)

A

O–anterior surfaces of ribs 3-5 (or 2-4)<br></br>I–coracoid process of scapula

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195
Q

serratus anterior: origin (O) and insertion (I)

A

O–by a series of muscle slips from ribs 1-8 (or 9)<br></br>I–entire anterior surface of vertebral border of scapula

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196
Q

subclavius: origin (O) and insertion (I)

A

O–costal cartilage of rib 1<br></br>I–groove on inferior surface of clavicle

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197
Q

trapezius: origin (O) and insertion (I)

A

O–occipital bone, ligamentum nuchae, and spines of C7 and all thoracic vertebrae<br></br>I–a continuous insertion along acromion and spine of scapula and lateral third of clavicle

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198
Q

levator scapulae: origin (O) and insertion (I)

A

O–transverse processes of C1-C4<br></br>I–medial border of the scapula, superior to the spine

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199
Q

rhomboids: origin (O) and insertion (I)

A

O–spinous processes of C7 and T1 (minor) and spinous processes of T2-T5 (major)<br></br>I–medial border of scapula

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200
Q

pectoralis major: origin (O) and insertion (I)

A

O–sternal end of clavicle, sternum, cartilage of ribs 1-6 (or 7), and aponeurosis of external oblique muscle<br></br>I–fibers converge to insert by a short tendon into greater tubercle of humerus

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201
Q

deltoid: origin (O) and insertion (I)

A

O–lateral third of clavicle; acromion and spine of scapula<br></br>I–deltoid tuberosity of humerus

202
Q

litissimus dorsi: origin (O) and insertion (I)

A

O–indirect attachment via thoracolumbar fascia into spines of lower six thoracic vertebrae, lumbar vertebrae, lower 3 to 4 ribs, and iliac crest<br></br>I–spirals around teres major to insert in floor of intertubercular sulcus of humerus

203
Q

teres major: origin (O) and insertion (I)

A

O–posterior surface of scapula at inferior angle<br></br>I–crest of lesser tubercle on anterior humerus; insertion tendon fused with that of latissimus dorsi

204
Q

subscapularis: origin (O) and insertion (I)

A

O–subscapular fossa of scapula<br></br>I–lesser tubercle of humerus

205
Q

supraspinatus: origin (O) and insertion (I)

A

O–supraspinous fossa of scapula<br></br>I–superior part of greater tubercle of humerus

206
Q

infraspinatus: origin (O) and insertion (I)

A

O–infraspinous fossa of scapula<br></br>I–greater tubercle of humerus posterior to insertion of supraspinatus

207
Q

teres minor: origin (O) and insertion (I)

A

O–sateral border of dorsal scapular surface<br></br>I–greater tubercle of humerus inferior to infraspinatus insertion

208
Q

coracobrachialis: origin (O) and insertion (I)

A

O–coracoid process of scapula<br></br>I–medial surface of humerus shaft

209
Q

triceps brachii: origin (O) and insertion (I)

A

O–long head: infraglenoid tubercle of scapula; lateral head: posterior shaft of humerus; medial head: posterior shaft of humerus distal to radial groove<br></br>I–by common tendon into olecranon of ulna

210
Q

anconeus: origin (O) and insertion (I)

A

O–lateral epicondyle of humerus<br></br>I–lateral aspect of olecranon of ulna

211
Q

brachioradialis: origin (O) and insertion (I)

A

O–lateral supracondylar ridge at distal end of humerus<br></br>I–base of styloid process of radius

212
Q

biceps brachii: origin (O) and insertion (I)

A

O–short head: coracoid process; long head: supraglenoid tubercle and lip of glenoid cavity; tendon of long head runs within capsule of shoulder joint and descends into interbuercular sulcus of humerus<br></br>I–by common tendon into radial tuberosity

213
Q

brachialis: origin (O) and insertion (I)

A

O–anterior surface of distal humerus; embraces insertion of deltoid muscle<br></br>I–coronoid process of ulna and capsule of elbow joint

214
Q

pronator teres: origin (O) and insertion (I)

A

O–medial epicondyle of humerus; coronoid process of ulna<br></br>I–by common tendon into lateral radius; midshaft

215
Q

flexor carpi radialis: origin (O) and insertion (I)

A

O–medial epicondyle of humerus<br></br>I–base of second and third metacarpals; insertion tendon easily seen and provides guid to position of radial artery (used for pulse taking) at wrist

216
Q

palmaris longus: origin (O) and insertion (I)

A

O–medial epicondyle of humerus<br></br>I–fascia of palm (palmar aponeurosis)

217
Q

flexor carpi ulnaris: origin (O) and insertion (I)

A

O–medial epicondyle of humerus; olecranon and posterior surface of ulna<br></br>I–pisiform and hamate bones and base of fifth metacarpal

218
Q

flexor digitorum superficialis: origin (O) and insertion (I)

A

O–medial epicondyle of humerus, coronoid process of ulna; shaft of radius<br></br>I–by four tendons into middle phlanges of fingers II-V

219
Q

flexor pollicis longus: origin (O) and insertion (I)

A

O–anterior surface of radius and interosseous membrane<br></br>I–distal phalanx of thum

220
Q

flexor digitorum profundus: origin (O) and insertion (I)

A

O–anteromedial surface of ulna and interosseous membrane<br></br>I–by four tendons into distal phalanges of fingers II-V

221
Q

pronator quadratus: origin (O) and insertion (I)

A

O–distal portion of anterior ulnar shaft<br></br>I–distal surface of anterior radius

222
Q

extensor carpi radialis longus: origin (O) and insertion (I)

A

O–lateral supracondylar ridge of humerus<br></br>I–base of second metacarpal

223
Q

extensor carpi radialis brevis: origin (O) and insertion (I)

A

O–lateral epicondyle of humerus<br></br>I–base of third metacarpal

224
Q

extensor digitorum: origin (O) and insertion (I)

A

O–lateral epicondyle of humerus<br></br>I–by four tendons into extensor expansions and distal phalanges of fingers II-V

225
Q

extensor carpi ulnaris: origin (O) and insertion (I)

A

O–lateral epicondyle of humerus and posterior border of ulna<br></br>I–base of fifth metacarpal

226
Q

supinator: origin (O) and insertion (I)

A

O–lateral epicondyle of humerus; proximal ulna<br></br>I–proximal end of radius

227
Q

abductor pollicis longus: origin (O) and insertion (I)

A

O–posterior surface of radius and ulna; interosseous membrane<br></br>I–base of first metacarpal and trapezium

228
Q

extensor pollicis brevis and longus: origin (O) and insertion (I)

A

O–dorsal shaft of radius and ulna; interosseous membrane<br></br>I–base of proximal (brevis) and distal (longus) phalanx of thumb

229
Q

extensor indicis: origin (O) and insertion (I)

A

O–posterior surface of distal ulna; interosseous membrane<br></br>I–extensor expansion of index finger; joins tendon of extensor digitorum

230
Q

abductor pollicis brevis: origin (O) and insertion (I)

A

“O–flexor retinaculum and nearby carpals<br></br>I–lateral base of thumb’s proximal phalanx”

231
Q

flexor pollicis brevis: origin (O) and insertion (I)

A

O–flexor retinaculum and nearby carpals<br></br>I–lateral side of base of proximal phalanx of thumb

232
Q

opponens pollicis: origin (O) and insertion (I)

A

O–flexor retinaculum and trapezium<br></br>I–whole anterior side of metacarpal I

233
Q

adductor pollicis: origin (O) and insertion (I)

A

O–capitate bone and bases of metacarpals II-IV; front of metacarpal III<br></br>I–medial side of base of proximal phalanx of thumb

234
Q

abductor digiti minimi: origin (O) and insertion (I)

A

“O–pisiform bone<br></br>I–medial side of proximal phalanx of little finger<br></br>O–calcaneal tuberosity<br></br>I–lateral side of base of little toe’s proximal phalanx”

235
Q

flexor digiti minimi brevis: origin (O) and insertion (I)

A

O–hamate bone and flexor retinaculum<br></br>I–same as abductor digiti minimi (medial side of proximal phalanx of little finger)<br></br>O–base of metatarsal V and sheath of fibularis longus tendon<br></br>I–base of proximal phalanx of toe V

236
Q

opponens digiti minimi: origin (O) and insertion (I)

A

O–same as flexor digiti minimi brevis (hamate bone and flexor retinaculum)<br></br>I–most of length of medial side of metacarpal V

237
Q

lumbricals: origin (O) and insertion (I)

A

O–lateral side of each tendon of flexor digitorum profundus in palm<br></br>I–lateral edge of extensor expansion on first phalanx of fingers II-V<br></br>O–from each tendon of flexor digitorum longus<br></br>I–extensor expansion on proximal phalanx of toes II-V, medial side

238
Q

palmar interossei: origin (O) and insertion (I)

A

O–the side of each metacarpal that faces the midaxis of the hand (metacarpal III); but absent from metacarpal III<br></br>I–extensor expansion on first phalanx of each finger (except finger III), on side facing midaxis of hand

239
Q

dorsal interossei: origin (O) and insertion (I)

A

I–sides of metacarpals<br></br>I–extensor expansion over first phalanx of fingers II-IV on side opposite midaxis of hand (finger III), but on both sides of finger III

240
Q

iliacus: origin (O) and insertion (I)

A

O–iliac fossa, ala of sacrum<br></br>I–lesser trochanter of femur via iliopsoas tendon

241
Q

psoas major: origin (O) and insertion (I)

A

O–by fleshy slips from transverse processes, bodies, and discs of lumbar vertebrae and T12<br></br>I–lesser trochanter of femur via iliopsoas tendon

242
Q

tensor fasciae latae: origin (O) and insertion (I)

A

O–anterior aspect of iliac crest and anterior superior iliac spine<br></br>I–iliotibial tract

243
Q

sartorius: origin (O) and insertion (I)

A

O–anterior superior iliac spine<br></br>I–winds around medial aspect of knee and inserts into medial aspect of proximal tibia

244
Q

rectus femoris: origin (O) and insertion (I)

A

O–anterior infderior iliac spine and superior margin of acetabulum<br></br>I–patella and tibial tuberosity via patellar ligament

245
Q

vastus lateralis: origin (O) and insertion (I)

A

O–greater trochanter, intertrochanteric line, linea aspera<br></br>I–as for rectus femoris (patella and tibial tuberosity via patellar ligament)

246
Q

vastus medialis: origin (O) and insertion (I)

A

O–linea aspera, medial supracondylar line, intertrochanteric line<br></br>I–as for rectus femoris (patella and tibial tuberosity via patellar ligament)

247
Q

vastus intermedius: origin (O) and insertion (I)

A

O–anterior and lateral surfaces of proximal femur shaft<br></br>I–as for rectus femoris (patella and tibial tuberosity via patellar ligament)

248
Q

pectineus: origin (O) and insertion (I)

A

O–pectineal line of pubis (and superior ramus)<br></br>I–a line from lesser trochanter to the linea aspera on posterior aspect of femur

249
Q

gracilis: origin (O) and insertion (I)

A

O–inferior ramus and body of pubis and adjacent ischial ramus<br></br>I–medial surface of tibia just inferior to its medial condyle

250
Q

adductor longus: origin (O) and insertion (I)

A

O–pubis near pubic symphysis<br></br>I–linea aspera

251
Q

Bipartite muscle consisting of frontal and occipital bellies connected by the epicranial aponeurosis. The alternate actions of these two muscles pull scalp anteriorly and posteriorly

A

Epicranius (Occipitofrontalis): Description

252
Q

covers forehead and dome of skull; no bony attachments

A

frontal belly: description

253
Q

overlies posterior occiput; by pulling on the epicranial aponeuronsis, fixes origin of the frontal belly

A

occipital belly: description

254
Q

small muscle to eyebrow; acts with orbicularis oculi

A

corrugator supercilii: description

255
Q

thin, flat sphincter muscle of eyelid; surrounds rim of the orbit

A

orbicularis oculi: description

256
Q

muscle pair extending diagonally from cheekbone to corner of mouth

A

zygomaticus: description

257
Q

multilayered muscle of the lips with fibers that run in many different directions; most run circularly

A

orbicularis oris: description

258
Q

one of the muscle pair forming a V-shaped muscle mass on chin

A

mentalis: description

259
Q

unpaired, thin, sheetlike superficial neck muscle; not strictly a head muscle, but plays a role in facial expression

A

platysma: description

260
Q

slender muscle inferior and lateral to zygomaticus

A

risorius: description

261
Q

thin muscle between orbicularis oris and inferior eye margin

A

levator labii superioris: description

262
Q

small muscle running from mandible to lower lip

A

depressor labii inferioris: description

263
Q

small muscle lateral to depressor labii inferioris

A

depressor anguli oris: description

264
Q

thin, horizontal cheek muscle; principal muscle of cheek; deep to masseter

A

buccinator: description

265
Q

powerful muscle that covers lateral aspect of ramus of mandible

A

masseter: description

266
Q

fan-shaped muscle that covers parts of the temporal, frontal, and parietal bones

A

temporalis: description

267
Q

deep two-headed muscle that runs along internal surface of mandible and is largely concealed by that bone

A

medial pterygoid: description

268
Q

deep two-headed muscle; lies superior to medial pterygoid muscle

A

lateral pterygoid: description

269
Q

fan-shaped muscle; forms bult of inferior part of tongue; its attachment to mandible prevents tongue from falling backward and obstructing respiration

A

genioglossus: description

270
Q

flat, quadrilateral muscle

A

hyoglossus: description

271
Q

slender muscle running superiorly to and at right angles to hyoglossus

A

styloglossus: description

272
Q

consists of two bellies united by an intermediate tendon, forming a V shape under the chin

A

digastric: description

273
Q

slender muscle below angle of jaw; parallels posterior belly of digastric muscle

A

stylohyoid: description

274
Q

flat, triangular muscle just deep to digastric muscle; this muscle pair forms a sling that forms the floor of the anterior mouth

A

mylohyoid: description

275
Q

narrow muscle in contact with its partner medially; runs from chin to hyoid bone deep to mylohyoid

A

geniohyoid: description

276
Q

most medial muscle of the neck; thin; superficial except inferiorly, where covered by sternocleidomastoid

A

sternohyoid: description

277
Q

lateral and deep to sternohyoid

A

sternothyroid: description

278
Q

straplike muscle with two bellies united by an intermediate tendon; lateral to sternohyoid

A

omohyoid: description

279
Q

appears as a superior continuation of sternothyroid muscle

A

thyrohyoid: description

280
Q

composite of three pair muscles whose fibers run circularly in pharynx wall; arranged so that the superior mescle is innermost and inferior one is outermost; substantial overlap

A

superior, middle, and inferior pharyngeal constrictors: description

281
Q

two-headed muscle located deep to platysma on anterolateral surface of neck; delineate limits of anterior and posterior triangles of the neck

A

sternocleidomastoid: description

282
Q

located more laterally than anteriorly on neck; deep to platysma and sternocleidomastoid

A

scalences: description

283
Q

broad bipartite superficial muscle (capitis and cervicis parts) extending from upper thoracic vertebrae to skull

A

splenius: description

284
Q

most lateral muscle group of erector spinae muscles; extend from pelvis to neck

A

iliocostalis: description

285
Q

intermediate tripartite muscle group of erector spinae; extend by many muscle slips from lumbar region to skull; mainly pass between transverse processes of the vertebrae

A

longissimus: description

286
Q

most medial muscle column of erector spinae; cervicis usually rudimentary and poorly defined

A

spinalis: description

287
Q

composite muscle forming part of deep layer of inttrinsic back muscles; extends from thoracic region to head

A

semispinalis: description

288
Q

fleshy muscle forming part of posterior abdominal wall

A

quadratus lumborum: description

289
Q

11 pairs lie between ribs; fibers run obliquely (down and medial) from each rib to rib below; in lower intercostal spaces, fibers are continuous with external oblique muscle forming part of abdominal wall

A

external intercostals: description

290
Q

11 pairs lie between ribs; fibers run deep to and at right angles to those of external intercostals (i.e., up and medial); lower internal intercostals muscles are continuous with fibers of internal oblique muscle of abdominal wall

A

internal intercostals: description

291
Q

broad muscle pierced by the aorta, inferior vena cava, and esophagus; forms floor of thoracic cavity; in relaxed state is dome-shaped; fibers converge from margins of thoracic cage toward a boomerange-shaped central tendon

A

diaphragm: description

292
Q

largest and most superficial of the three lateral muscles; fibers run downward and medially (same direction outstretched fingers take when hands put into pants pockets); aponeurosis turns under inferiorly, forming inguinal ligament

A

external oblique: description

293
Q

most fibers run superiorly and medially; the muscle fans such that its inferior fibers run inferiorly and medially

A

internal oblique: description

294
Q

deepest (innermost) muscle of abdominal wall; fibers run horizontally

A

transversus abdominis: description

295
Q

medial muscle pair; extend from pubis to rib cage; ensheathed by aponeuroses of lateral muscles; segmented by three tendinous intersections

A

rectus abdominis: description

296
Q

“broad, thin, tripartite muscle (puborectalis, pubococcygeus, and iliococcygeus parts); its fibers extend inferomedially, forming a muscular ““sling”” around the prostate (or vagina), urethra, and anorectal junction before meeting in the median plane”

A

levator ani: description

297
Q

small triangular muscle lying posterior to levator ani; forms posterior part of pelvic diaphragm

A

coccygeus: description

298
Q

together the pair spans distance between ischial rami; in females, lies posterior to vagina

A

deep transverse perineal muscle: description

299
Q

muscle encircling urethra and vagina (female)

A

external urethral sphincter: description

300
Q

runs from pelvis to base of penis or clitoris

A

ischiocavernosus: description

301
Q

encloses base of penis (bulb) in males and lies deep to labia in females

A

bulbospongiosus: description

302
Q

paired muscle bands posterior to urethral (and in females, vaginal) opening; variable; sometimes absent

A

superficial transverse perineal muscle: description

303
Q

flat, thin muscle deep to pectoralis major

A

pectoralis minor: description

304
Q

fan-shaped muscle; lies deep to scapula, deep and inferior to pectoral muscles on lateral rib cage; forms medial wall of axilla, origins have serrated, or sawtooth, apperance

A

serratus anterior: description

305
Q

small cylindrical muscle extending from rib 1 to clavicle

A

subclavius: description

306
Q

most superficial muscle of poterior thorax; flat and triangular; upper fibers run inferiorly to scapula; middle fibers run horizontally to scapula; lower fibers run superiorly to scapula

A

trapezius: description

307
Q

located at back and side of neck, deep to trapezius; thick, straplike muscle

A

levator scapulae: description

308
Q

two rectangular muscles lying deep to trapezius and inferior to levator scapulae; rhomboid minor is the more superior muscle

A

rhomboids: description

309
Q

large, fan-shaped muscle covering upper portion of cheste; forms anterior axillary fold; divided into clavicular and sternal parts

A

pectoralis major: description

310
Q

thick, multipennate muscle forming rounded shoulder muscle mass; a site commonly used for intramuscular injection, particularly in males, where it tends to be quite fleshy

A

deltoid: description

311
Q

broad, flat, triangular muscle of lower back (lumbar region); extensive superficial origins; covered by trapezius superiorly; contributes to the posterior wall of axilla

A

latissimus dorsi: description

312
Q

thick, rounded muscle; located inferior to teres minor, helps to form posterior wall of axilla (along with latissimus dorsi and subscapularis)

A

teres major: description

313
Q

a rotator cuff muscle; forms part of posterior wall of axilla; tendon of insertion passes in front of shoulder joint

A

subscapularis: description

314
Q

a rotator cuff muscle; named for its location on posterior aspect of scapula; deep to trapezius

A

supraspinatus: description

315
Q

a rotator cuff muscle; partially covered by deltoid and trapezius; named for its scapular location

A

infraspinatus: description

316
Q

a rotator cuff muscle; small, elongated muscle; lies inferior to infraspinatus and may be inseperable from that muscle

A

teres minor: description

317
Q

small, cylindrical muscle; located in anterior compartment of arm

A

coracobrachialis: description

318
Q

large fleshy muscle; the only muscle of posterior compartment of arm; three-headed origin; long and lateral heads lie superficial to medial head

A

triceps brachii: description

319
Q

short triangular muscle; closely associated with distal end of triceps on posterior humerus

A

anconeus: description

320
Q

superficial muscle of lateral forearm; forms lateral boundary of cubital fossa; extends from distal humerus to distal forearm; develops from extensor muscle group; functionally a flexor

A

brachioradialis: description

321
Q

two-headed fusiform muscle; bellies unite as insertion point is approached; tendon of long head helps stabilize shoulder joint

A

biceps brachii: description

322
Q

strong muscle that is immediately deep to biceps brachii on distal humerus

A

brachialis: description

323
Q

two-headed muscle; seen in superficial view between proximal margins of brachioradialis and flexor carpi radialis; forms medial boundary of cubital fossa

A

pronator teres: description

324
Q

runs diagonally across forearm; midway, its fleshy belly is replaced by a flat tendon that becomes cordlike at wrist

A

flexor carpi radialis: description

325
Q

small fleshy muscle with a long insertion tendon; often absent; may be used as guid to find median nerve that lies lateral to it at wrist

A

palmaris longus: description

326
Q

most medial muscle of this grop; two-headed; ulnar nerve lies lateral to its tendon

A

flexor carpi ulnaris: description

327
Q

two-headed muscle; more deeply placed, overlain by superficial muscles but visible at distal end of forearm

A

flexor digitorum superficialis: description

328
Q

partly covered by flexor digitorum superficialis; lies lateral and parallel to flexor digitorum profundus

A

flexor pollicis longus: description

329
Q

extensive origin; overlain entirely by flexor digitorum superficialis

A

flexor digitorum profundus: description

330
Q

deepest muscle of distal forearm; passes downward and laterally; only muscle that arises solely from ulna and inserts solely into radius

A

pronator quadratus: description

331
Q

parallels brachioradialis on lateral forearm, and may blend with it

A

extensor carpi radialis longus: description

332
Q

somewhat shorter than extensor carpi radialis longus and lies deep to it

A

extensor carpi radialis brevis: description

333
Q

lies medial to extensor carpi radialis brevis; a detached portion of this muscle, called extensor digiti minimi, extends little finger

A

extensor digitorum: description

334
Q

most medial of superficial posterior muscles; long, slender muscle

A

extensor carpi ulnaris: description

335
Q

deep muscle at posterior aspect of elbow; largely concealed by superficial muscles

A

supinator: description

336
Q

lateral and parallel to extensor pollicis longus; just distal to supinator

A

abductor pollicis longus: description

337
Q

deep muscle pair with a common origin and action; overlain by extensor carpi ulnaris

A

extensor pollicis brevis and longus: description

338
Q

tiny muscle arising close to wrist

A

extensor indicis: description

339
Q

lateral muscle of thenar group; superficial

A

abductor pollicis brevis: description

340
Q

medial and deep muscle of thenar group

A

flexor pollicis brevis: description

341
Q

deep to adbuctor pollicis brevis, on metacarpal I

A

opponens pollicis: description

342
Q

fan-shaped with horizontal fibers; distal to otehr thenar muscles; oblique and transverse heads

A

adductor pollicis: description

343
Q

medial muscle of hypothenar group; superficial (hand)<br></br>most lateral of the three superficial sole muscles (foot)

A

abductor digiti minimi: description

344
Q

lateral deep muscle of hypothenar group (hand)<br></br>covers metatarsal V (foot)

A

flexor digiti minimi brevis: description

345
Q

deep to abductor digiti minimi

A

opponens digiti minimi: description

346
Q

four worm-shaped muscles in palm [or sole], one to each finger /toe; unusual because they originate from the tendons of another muscle

A

lumbricals: description

347
Q

four long, cone-shaped muscles in the spaces between the metacarpals; lie ventral to the dorsal interossei

A

palmar interossei: description

348
Q

four bipennate muscles filling spaces between the metacarpals; deepest palm muscles, also visible on dorsal side of hand

A

dorsal interossei: description

349
Q

large fan-shaped, more lateral muscle (of iliopsoas)

A

iliacus: description

350
Q

longer, thicker, more medial muscle of the pair (of iliopsoas). (Butchers refer to this muscle, in beef or pork, as the tenderloin)

A

psoas major: description

351
Q

enclosed between fascia layers of anterolateral aspect of thigh; functionally associated with medial rotators and flexors of thigh

A

tensor fasciae latae: description

352
Q

straplike superficial muscle running obliquely across anterior surface of thigh to knee; longest muscle in body; crosses both hip and knee joints

A

sartorius: description

353
Q

superficial muscle of anterior thigh; runs straight down thigh; longest head and only muscle of group to cross hip joint

A

rectus femoris: description

354
Q

largest head of the group, forms lateral aspect of thigh; a common intramuscular injection site

A

vastus lateralis: description

355
Q

forms inferomedial aspect of thigh

A

vastus medialis: description

356
Q

obscured by rectus femoris; lies between vastus lateralis and vastus medialis on anterior thigh

A

vastus intermedius: description

357
Q

short, flat muscle; overlies adductor brevis on proximal thigh; abuts adductor longus medially

A

pectineus: description

358
Q

long, thin, superficial muscle of medial thigh

A

gracillis: description

359
Q

overlies middle aspect of adductor magnus; most anterior of adductor muscles

A

adductor longus: description

360
Q

in contact with obturator externus muscle; largely concealed by adductor longus and pectineus

A

adductor brevis: description

361
Q

a traingular muscle with a broad insertion; is a composite muscle that is part adductor and part hamstirng in action

A

adductor magnus: description

362
Q

largest and most superficial of gluteus muscles; forms bulk of buttock mass; fascicles are thick and coarse; a site of intramuscular injection (dorsal gluteal site); overlies large sciatic norve; covers ischial tuberosity only when standing; when sitting, moves superiorly, leaving ischial tuberosity exposed in the subcutaneous position

A

gluteus maximus: description

363
Q

thick muscle largely covered by gludeus maximus; important site for intramuscular injections (ventral gluteal site); considered safer than dorsal gluteal site because there is less change injuring sciatic nerve

A

gluteus medius: description

364
Q

smallest and deepest of gluteal muscles

A

gluteus minimus: description

365
Q

most lateral muscle of the group (hamstrings); arises from two heads

A

biceps femoris: description

366
Q

lies medial to biceps femoris; its long, slender tendon begins about two-thirds of the way down thigh

A

semitendinosus: description

367
Q

deep to semitendinosus

A

semimembranosus: description

368
Q

pyramidal muscle located on posterior aspect of hip joint; infernal to gluteus minimus; issues from pelvis via greater sciatic notch

A

piriformis: description

369
Q

flat, triangular muscle deep in upper midal aspect of thigh

A

obturator exterus: description

370
Q

surrounds obturator foramen within pelvis; leaves pelvis via lesser sciatic notch and turns acutely forward to insert on femur

A

obturator internus: description

371
Q

two small muscles with common insertions and actions; considered extrapelvic portions of obturator internus

A

gemellus: description

372
Q

short, thick muscle; most inferior of lateral rotator muscles; extends laterally from pelvis

A

quadratus femoris: description

373
Q

superficial muscle of anterior leg; laterally parallels shaprt anterior margin of tibia

A

tibialis anterior: description

374
Q

unipennate muscle on anterolateral surface of leg; lateral to tibialis anterior muscle

A

extensor digitorum longus: description

375
Q

small muscle; usually continuous and fused with distal part of extensor digitorum longus; not always present

A

fibularis (peroneus) tertius: description

376
Q

deep to extensor digitorum longus and tibialis anterior; narrow origin

A

extensor hallucis longus: description

377
Q

superficial lateral muscle; overlies fibula

A

fibularis (peroneus) longus: description

378
Q

smaller muscle; deep to fibularis langus; enclosed in a common sheath

A

fibularis (peroneus) brevis: description

379
Q

superficial muscle of pair (triceps surae); two prominent bellies that form proximal curve of calf

A

gastrocnemius: description

380
Q

broat, flat muscle, deep to gastrocnemius on posterior surface of calf

A

soleus: description

381
Q

generally a small, feeble muscle, but varies in size and extent; may be absent

A

plantaris: description

382
Q

thin, triangular muscle at posterior knee; passes downward and medially to tibial surface

A

popliteus: description

383
Q

long, narrow muscle; runs medial to and partially ovenlies tibialis posterior

A

flexor digitorum longus: description

384
Q

bipennate muscle; lies lateral to inferior aspect of tibialis posterior

A

flexor hallucis longus: description

385
Q

thick, flat muscle dep to soleus; placed between posterior flexors

A

tibialis posterior: description

386
Q

small, four-part muscle on dorsum of foot; deep to the tendons of extensor digitorum longus; corresponds to the extensor indicis and extensor pollicis muscles of forearm

A

extensor digitorum brevis: description

387
Q

(first layer, most superficial), bandlike muscle in middle of sole; corresponds to flexor digitorum sperficialis of forearm and inserts into digits in the same way

A

flexor digitorum brevis: description

388
Q

(first layer, most superficial), lies medial to flexor digitorum brevis (recall the similar thumb muscle, abductor pollicis brevis)

A

abductor hallucios: description

389
Q

(second layer), retangular muscle just deep to flexor digitorum brevis in posterior half of sole; two heads

A

flexor accessorius (quadratus plantae): description

390
Q

(third layer), covers metatarsal I; splits into two bellies–recall flexor pollicis brevis of thumb

A

flexor hallucis brevis: description

391
Q

(third layer), oblique and transverse heads; deep to lumbricals (recall adductor pollicis in thumb)

A

adductor hallucis: description

392
Q

(fourth layer), three plantar and four dorsal; similar to palmar and dorsal interossei of hand in lacations, attachments, and actions; however, the long axis of foot around which these muscles orienty is the secnd digit, not third

A

plantar and dorsal interossei: description

393
Q

O–epicranial aponeurosis<br></br>I–skin of eyebrows and root of nose

A

frontal belly: origin (O) and insertion (I)

394
Q

O–occipital and temporal (mastoid) bones<br></br>I–epicranial aponeurosis

A

occipital belly: origin (O) and insertion (I)

395
Q

O–arch of frontal bone above nasal bone<br></br>I–skin of eyebrow

A

corrugator supercilli: origin (O) and insertion (I)

396
Q

O–frontal and maxillary bones and ligaments around orbit<br></br>I–tissue of eyelid

A

orbicularis oculi: origin (O) and insertion (I)

397
Q

O–zygomatic bone<br></br>I–skin and muscle at corner of mouth

A

zygomaticus: origin (O) and insertion (I)

398
Q

O–arises indirectly from maxilla and mandible; fibers blended with fibers of other facial muscles asociated with the lips<br></br>I–encircles mouth; inserts into muscle and skin at angles of mouth

A

orbicularis oris: origin (O) and insertion (I)

399
Q

O–mandible below incisors<br></br>I–skin of chin

A

mentalis: origin (O) and insertion (I)

400
Q

O–fascia of chest (over pectoral muscles and deltoi)<br></br>I–lower margin of mandible, and skin and muscle at corner of mouth

A

platysma: origin (O) and insertion (I)

401
Q

O–lateral fascia associated with masseter muscle<br></br>I–skin at angle of mouth

A

risorius: origin (O) and insertion (I)

402
Q

O–zygomatic bone and infraorbital margin of maxilla<br></br>I–skin and muscle of upper lip

A

levator labii superioris: origin (O) and insertion (I)

403
Q

O–body of mandible lateral to its midline<br></br>I–skin and muscle of lower lip

A

depressor labii inferioris: origin (O) and insertion (I)

404
Q

O–body of mandible below incisors<br></br>I–skin and muscle at angle of mouth below insertion of zygomaticus

A

depressor anguli oris: origin (O) and insertion (I)

405
Q

O–molar region of maxilla and mandible<br></br>I–orbicularis oris

A

buccinator: origin (O) and insertion (I)

406
Q

O–zygomatic arch and zygomatic bone<br></br>I–angle and ramus of mandible

A

masseter: origin (O) and insertion (I)

407
Q

O–temporal fossa<br></br>I–coronoid process of mandible via a tendon that passes deep to zygomatic arch

A

temporalis: origin (O) and insertion (I)

408
Q

O–medial surface of lateral pterygoid plate of sphenoid bone, maxilla, and palatine bone<br></br>I–medial surface of mandible near its angle

A

medial pterygoid: origin (O) and insertion (I)

409
Q

O–greater wing and lateral pterygoid plate of sphenoid bone<br></br>I–condylar process of mandible and capsule of temporomandibular joint

A

lateral pterygoid: origin (O) and insertion (I)

410
Q

O–internal surface of mandible near symphysis<br></br>I–inferior aspect of the tongue and body of hyoid bone

A

genioglossus: origin (O) and insertion (I)

411
Q

O–body and greater horn of hyoid bone<br></br>I–inferolateral tongue

A

syoglossus: origin (O) and insertion (I)

412
Q

O–styloid process of temporal bone<br></br>I–lateral inferior aspect of tongue

A

styloglossus: origin (O) and insertion (I)

413
Q

O–lower margin of mandible (anterior belly) and mastoid process of the temporal bone (posterior belly)<br></br>I–by a connective tissue loop to hyoid bone

A

digastric: origin (O) and insertion (I)

414
Q

O–styloid process of temporal bone<br></br>I–hyoid bone

A

stylohyoid: origin (O) and insertion (I)

415
Q

O–medial surface of mandible<br></br>I–hyoid bone and median raphe

A

mylohyoid: origin (O) and insertion (I)

416
Q

O–inner surface of mandibular symphysis<br></br>I–hyoid bone

A

geniohyoid: origin (O) and insertion (I)

417
Q

O–manubrium and medial end of clavicle<br></br>I–lower margin of hyoid bone

A

sternohyoid: origin (O) and insertion (I)

418
Q

O–posterior surface of manubrium of sternum<br></br>I–thyroid cartilage

A

sternothyroid: origin (O) and insertion (I)

419
Q

O–superior surface of scapula<br></br>I–hyoid bone, lower border

A

omohyoid: origin (O) and insertion (I)

420
Q

O–thyroid cartilage<br></br>I–hyoid bone

A

thyrohyoid: origin (O) and insertion (I)

421
Q

O–attached anteriorly to mandible and medial pterygoid plate (superior), hyoid bone (middle), and laryngeal cartilages (inferior)<br></br>I–posterior median raphe of pharynx

A

superior, middle, and inferior pharyngeal constrictors: origin (O) and insertion (I)

422
Q

O–manubrium of sternum and medial portion of clavicle<br></br>I–mastoid process of temporal bone and superior nuchal line of occipital bone

A

sternocleidomastoid: origin (O) and insertion (I)

423
Q

O–transverse processes of cervical vertebrae<br></br>I–anteriorlaterally on first two ribs

A

scalenes: origin (O) and insertion (I)

424
Q

O–ligamentum nuchae. spinous processes of vertebrae C7-T6<br></br>I–mastoid process of temporal bone and occipital bone (capitis); transverse processes of C2-C4 vertebrae (cervicis)

A

splenius: origin (O) and insertion (I)

425
Q

O–iliac crests (lumborum); inferior 6 ribs (thoracis); ribs 3 to 6 (cervicis)<br></br>I–angles of ribs (lumborum and thoracis); transverse processes of cervical vertebrae C6-C4 (cervicis)

A

iliocostalis: origin (O) and insertion (I)

426
Q

O–transverse processes of lumbar through cervical vertebrae<br></br>I–transverse processes of thoracic or cervical vertebrae and to ribs superior to origin as indicated by name; capitis inserts into mastoid process of temporal bone

A

longissimus: origin (O) and insertion (I)

427
Q

O–spines of upper lumbar and lower thoracic vertebrae<br></br>I–spines of upper thoracic and cervical vertebrae

A

spinalis: origin (O) and insertion (I)

428
Q

O–transverse processes of C7-T12<br></br>I–occipital bone (capitis) and spinous processes of cervical (cervicis) and thoracic vertebrae T1 to T4 (thoracis)

A

semispinalis: origin (O) and insertion (I)

429
Q

O–iliac crest and lumbar fascia<br></br>I–transverse processes of upper lumbar vertebrae and lower margin of 12th rib

A

quadratus lumborum: origin (O) and insertion (I)

430
Q

O–inferior border of rib above<br></br>I–superior border of rib below

A

external intercostals: origin (O) and insertion (I)

431
Q

O–superior border of rib below<br></br>I–inferior border (costal groove) of rib above

A

internal intercostals: origin (O) and insertion (I)

432
Q

O–inferior internal nurface of rib cage and sternum, costal cartilages of last six ribs, and lumbar vertebrae<br></br>I–central tendon

A

diaphragm: origin (O) and insertion (I)

433
Q

O–by fleshy strips from outer surfaces of lower eight ribs<br></br>I–most fibers insert into linea alba via a broad aponeurosis; some insert into pubic crest and tubercle and iliac crest

A

external oblique: origin (O) and insertion (I)

434
Q

O–lumbar fascia, iliac crest, and inguinal ligament<br></br>I–linea alba, pubic crest, last three or four ribs antd costal margin

A

internal oblique: origin (O) and insertion (I)

435
Q

O–inguinal ligament, lumbar fascia, cartilages of last six ribs; iliac crest<br></br>I–linea alba, pubic crest

A

transversus abdominis: origin (O) and insertion (I)

436
Q

O–pubic crest and symphysis<br></br>I–xiphoid process and costal cartilages of ribs 5-7

A

rectus abdominis: origin (O) and insertion (I)

437
Q

O–extensive linear origin inside pelvis from pubis to ischial spine<br></br>I–inner surface of coccyx, levator any of opposite side, and (in part) into the structures that penetrate it

A

levator ani: origin (O) and insertion (I)

438
Q

O–spine of ischium<br></br>I–sacrum and coccyx

A

coccygeus: origin (O) and insertion (I)

439
Q

O–ischial rami<br></br>I–midline perineal body; some fibers into vaginal wall in females

A

deep transverse perineal muscle: origin (O) and insertion (I)

440
Q

O–ischiopubic rami<br></br>I–midline raphe

A

external urethral sphincter: origin (O) and insertion (I)

441
Q

O–ischial tuberosities<br></br>I–crus of corpus cavernosa of penis or clitoris

A

ischiocavernosus: origin (O) and insertion (I)

442
Q

O–perineal body and midline raphe of penis<br></br>I–anteriorly into corpus cavernosa of penis or clitoris

A

bulbospongeiousus: origin (O) and insertion (I)

443
Q

O–iscial tuberosity<br></br>I–perineal body

A

superficial transverse perineal muscle: origin (O) and insertion (I)

444
Q

O–anterior surfaces of ribs 3-5 (or 2-4)<br></br>I–coracoid process of scapula

A

pectoralis minor: origin (O) and insertion (I)

445
Q

O–by a series of muscle slips from ribs 1-8 (or 9)<br></br>I–entire anterior surface of vertebral border of scapula

A

serratus anterior: origin (O) and insertion (I)

446
Q

O–costal cartilage of rib 1<br></br>I–groove on inferior surface of clavicle

A

subclavius: origin (O) and insertion (I)

447
Q

O–occipital bone, ligamentum nuchae, and spines of C7 and all thoracic vertebrae<br></br>I–a continuous insertion along acromion and spine of scapula and lateral third of clavicle

A

trapezius: origin (O) and insertion (I)

448
Q

O–transverse processes of C1-C4<br></br>I–medial border of the scapula, superior to the spine

A

levator scapulae: origin (O) and insertion (I)

449
Q

O–spinous processes of C7 and T1 (minor) and spinous processes of T2-T5 (major)<br></br>I–medial border of scapula

A

rhomboids: origin (O) and insertion (I)

450
Q

O–sternal end of clavicle, sternum, cartilage of ribs 1-6 (or 7), and aponeurosis of external oblique muscle<br></br>I–fibers converge to insert by a short tendon into greater tubercle of humerus

A

pectoralis major: origin (O) and insertion (I)

451
Q

O–lateral third of clavicle; acromion and spine of scapula<br></br>I–deltoid tuberosity of humerus

A

deltoid: origin (O) and insertion (I)

452
Q

O–indirect attachment via thoracolumbar fascia into spines of lower six thoracic vertebrae, lumbar vertebrae, lower 3 to 4 ribs, and iliac crest<br></br>I–spirals around teres major to insert in floor of intertubercular sulcus of humerus

A

litissimus dorsi: origin (O) and insertion (I)

453
Q

O–posterior surface of scapula at inferior angle<br></br>I–crest of lesser tubercle on anterior humerus; insertion tendon fused with that of latissimus dorsi

A

teres major: origin (O) and insertion (I)

454
Q

O–subscapular fossa of scapula<br></br>I–lesser tubercle of humerus

A

subscapularis: origin (O) and insertion (I)

455
Q

O–supraspinous fossa of scapula<br></br>I–superior part of greater tubercle of humerus

A

supraspinatus: origin (O) and insertion (I)

456
Q

O–infraspinous fossa of scapula<br></br>I–greater tubercle of humerus posterior to insertion of supraspinatus

A

infraspinatus: origin (O) and insertion (I)

457
Q

O–sateral border of dorsal scapular surface<br></br>I–greater tubercle of humerus inferior to infraspinatus insertion

A

teres minor: origin (O) and insertion (I)

458
Q

O–coracoid process of scapula<br></br>I–medial surface of humerus shaft

A

coracobrachialis: origin (O) and insertion (I)

459
Q

O–long head: infraglenoid tubercle of scapula; lateral head: posterior shaft of humerus; medial head: posterior shaft of humerus distal to radial groove<br></br>I–by common tendon into olecranon of ulna

A

triceps brachii: origin (O) and insertion (I)

460
Q

O–lateral epicondyle of humerus<br></br>I–lateral aspect of olecranon of ulna

A

anconeus: origin (O) and insertion (I)

461
Q

O–lateral supracondylar ridge at distal end of humerus<br></br>I–base of styloid process of radius

A

brachioradialis: origin (O) and insertion (I)

462
Q

O–short head: coracoid process; long head: supraglenoid tubercle and lip of glenoid cavity; tendon of long head runs within capsule of shoulder joint and descends into interbuercular sulcus of humerus<br></br>I–by common tendon into radial tuberosity

A

biceps brachii: origin (O) and insertion (I)

463
Q

O–anterior surface of distal humerus; embraces insertion of deltoid muscle<br></br>I–coronoid process of ulna and capsule of elbow joint

A

brachialis: origin (O) and insertion (I)

464
Q

O–medial epicondyle of humerus; coronoid process of ulna<br></br>I–by common tendon into lateral radius; midshaft

A

pronator teres: origin (O) and insertion (I)

465
Q

O–medial epicondyle of humerus<br></br>I–base of second and third metacarpals; insertion tendon easily seen and provides guid to position of radial artery (used for pulse taking) at wrist

A

flexor carpi radialis: origin (O) and insertion (I)

466
Q

O–medial epicondyle of humerus<br></br>I–fascia of palm (palmar aponeurosis)

A

palmaris longus: origin (O) and insertion (I)

467
Q

O–medial epicondyle of humerus; olecranon and posterior surface of ulna<br></br>I–pisiform and hamate bones and base of fifth metacarpal

A

flexor carpi ulnaris: origin (O) and insertion (I)

468
Q

O–medial epicondyle of humerus, coronoid process of ulna; shaft of radius<br></br>I–by four tendons into middle phlanges of fingers II-V

A

flexor digitorum superficialis: origin (O) and insertion (I)

469
Q

O–anterior surface of radius and interosseous membrane<br></br>I–distal phalanx of thum

A

flexor pollicis longus: origin (O) and insertion (I)

470
Q

O–anteromedial surface of ulna and interosseous membrane<br></br>I–by four tendons into distal phalanges of fingers II-V

A

flexor digitorum profundus: origin (O) and insertion (I)

471
Q

O–distal portion of anterior ulnar shaft<br></br>I–distal surface of anterior radius

A

pronator quadratus: origin (O) and insertion (I)

472
Q

O–lateral supracondylar ridge of humerus<br></br>I–base of second metacarpal

A

extensor carpi radialis longus: origin (O) and insertion (I)

473
Q

O–lateral epicondyle of humerus<br></br>I–base of third metacarpal

A

extensor carpi radialis brevis: origin (O) and insertion (I)

474
Q

O–lateral epicondyle of humerus<br></br>I–by four tendons into extensor expansions and distal phalanges of fingers II-V

A

extensor digitorum: origin (O) and insertion (I)

475
Q

O–lateral epicondyle of humerus and posterior border of ulna<br></br>I–base of fifth metacarpal

A

extensor carpi ulnaris: origin (O) and insertion (I)

476
Q

O–lateral epicondyle of humerus; proximal ulna<br></br>I–proximal end of radius

A

supinator: origin (O) and insertion (I)

477
Q

O–posterior surface of radius and ulna; interosseous membrane<br></br>I–base of first metacarpal and trapezium

A

abductor pollicis longus: origin (O) and insertion (I)

478
Q

O–dorsal shaft of radius and ulna; interosseous membrane<br></br>I–base of proximal (brevis) and distal (longus) phalanx of thumb

A

extensor pollicis brevis and longus: origin (O) and insertion (I)

479
Q

O–posterior surface of distal ulna; interosseous membrane<br></br>I–extensor expansion of index finger; joins tendon of extensor digitorum

A

extensor indicis: origin (O) and insertion (I)

480
Q

“O–flexor retinaculum and nearby carpals<br></br>I–lateral base of thumb’s proximal phalanx”

A

abductor pollicis brevis: origin (O) and insertion (I)

481
Q

O–flexor retinaculum and nearby carpals<br></br>I–lateral side of base of proximal phalanx of thumb

A

flexor pollicis brevis: origin (O) and insertion (I)

482
Q

O–flexor retinaculum and trapezium<br></br>I–whole anterior side of metacarpal I

A

opponens pollicis: origin (O) and insertion (I)

483
Q

O–capitate bone and bases of metacarpals II-IV; front of metacarpal III<br></br>I–medial side of base of proximal phalanx of thumb

A

adductor pollicis: origin (O) and insertion (I)

484
Q

“O–pisiform bone<br></br>I–medial side of proximal phalanx of little finger<br></br>O–calcaneal tuberosity<br></br>I–lateral side of base of little toe’s proximal phalanx”

A

abductor digiti minimi: origin (O) and insertion (I)

485
Q

O–hamate bone and flexor retinaculum<br></br>I–same as abductor digiti minimi (medial side of proximal phalanx of little finger)<br></br>O–base of metatarsal V and sheath of fibularis longus tendon<br></br>I–base of proximal phalanx of toe V

A

flexor digiti minimi brevis: origin (O) and insertion (I)

486
Q

O–same as flexor digiti minimi brevis (hamate bone and flexor retinaculum)<br></br>I–most of length of medial side of metacarpal V

A

opponens digiti minimi: origin (O) and insertion (I)

487
Q

O–lateral side of each tendon of flexor digitorum profundus in palm<br></br>I–lateral edge of extensor expansion on first phalanx of fingers II-V<br></br>O–from each tendon of flexor digitorum longus<br></br>I–extensor expansion on proximal phalanx of toes II-V, medial side

A

lumbricals: origin (O) and insertion (I)

488
Q

O–the side of each metacarpal that faces the midaxis of the hand (metacarpal III); but absent from metacarpal III<br></br>I–extensor expansion on first phalanx of each finger (except finger III), on side facing midaxis of hand

A

palmar interossei: origin (O) and insertion (I)

489
Q

I–sides of metacarpals<br></br>I–extensor expansion over first phalanx of fingers II-IV on side opposite midaxis of hand (finger III), but on both sides of finger III

A

dorsal interossei: origin (O) and insertion (I)

490
Q

O–iliac fossa, ala of sacrum<br></br>I–lesser trochanter of femur via iliopsoas tendon

A

iliacus: origin (O) and insertion (I)

491
Q

O–by fleshy slips from transverse processes, bodies, and discs of lumbar vertebrae and T12<br></br>I–lesser trochanter of femur via iliopsoas tendon

A

psoas major: origin (O) and insertion (I)

492
Q

O–anterior aspect of iliac crest and anterior superior iliac spine<br></br>I–iliotibial tract

A

tensor fasciae latae: origin (O) and insertion (I)

493
Q

O–anterior superior iliac spine<br></br>I–winds around medial aspect of knee and inserts into medial aspect of proximal tibia

A

sartorius: origin (O) and insertion (I)

494
Q

O–anterior infderior iliac spine and superior margin of acetabulum<br></br>I–patella and tibial tuberosity via patellar ligament

A

rectus femoris: origin (O) and insertion (I)

495
Q

O–greater trochanter, intertrochanteric line, linea aspera<br></br>I–as for rectus femoris (patella and tibial tuberosity via patellar ligament)

A

vastus lateralis: origin (O) and insertion (I)

496
Q

O–linea aspera, medial supracondylar line, intertrochanteric line<br></br>I–as for rectus femoris (patella and tibial tuberosity via patellar ligament)

A

vastus medialis: origin (O) and insertion (I)

497
Q

O–anterior and lateral surfaces of proximal femur shaft<br></br>I–as for rectus femoris (patella and tibial tuberosity via patellar ligament)

A

vastus intermedius: origin (O) and insertion (I)

498
Q

O–pectineal line of pubis (and superior ramus)<br></br>I–a line from lesser trochanter to the linea aspera on posterior aspect of femur

A

pectineus: origin (O) and insertion (I)

499
Q

O–inferior ramus and body of pubis and adjacent ischial ramus<br></br>I–medial surface of tibia just inferior to its medial condyle

A

gracilis: origin (O) and insertion (I)

500
Q

O–pubis near pubic symphysis<br></br>I–linea aspera

A

adductor longus: origin (O) and insertion (I)

Anatomy (42 decks)

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