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A&P Lab > The Muscular System > Flashcards

The Muscular System Flashcards

1
Q

origin: galea aponeurotica

A

frontalis

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2
Q

insertion: skin around eyebrows and nose

A

frontalis

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3
Q

major function: wrinkles skin of forehead

A

frontalis

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4
Q

eyelids; around the eyes

A

orbicular oculi

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5
Q

extends diagonally from corner of mouth to cheekbone

A

zygomaticus

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6
Q

arises indirectly from maxilla & mandible; around lips

A

orbicularis oris

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7
Q

chin; mandible below incisors

A

mentalis

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8
Q

between maxilla and mandible

A

buccinator

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9
Q

either side of the anterior neck

A

platysma

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10
Q

side of mouth; runs inferior and lateral to zygomatics

A

risorius

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11
Q

lateral aspect of mandibular ramus (jaws)

A

masseter

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12
Q

origin: temporal fossa

A

temporalis

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13
Q

insertion: coronoid process of mandible

A

temporalis

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14
Q

major function: closes jaw; elevates and retracts mandible

A

temporalis

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15
Q

above hyoid bone

A

geniohyoid

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16
Q

medial surface of mandible; floor of mouth

A

myolhyoid

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17
Q

posterior border of diagastric; below angle of jaws

A

stylohyoid

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18
Q

lower margin of mandible (anterior belly) and mastoid process (posterior belly)

A

diagastric

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19
Q

deep to platysma (broad sheet of muscle fibers extending from collarbone to angle of jaws) on anterolateral surface of the neck

A

sternocleidomastoid

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20
Q

inferior border of ribs above

A

external intercostals

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21
Q

superior border of the ribs

A

internal intercoastals

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22
Q

inferior border of ribs/ sternum; junction of throacic/ abdominal

A

diaphragm

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23
Q

from pubis to rib cage

A

rectus abdominus

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24
Q

lower half of ribs around and down to pelvis

A

external oblique

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25
Q

right angle to those of external oblique; inside

A

internal oblique

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26
Q

deeper muscle; belly button up to the rib cage (on the side)

A

transverse abdominus

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27
Q

extends from 3-5 of ribcage to coracoid process

A

pectoralis minor

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28
Q

extends longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula

A

trapezius

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29
Q

located at the back and side of the neck, deep to trapezius

A

levator scapulae

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30
Q

beneath trapezius and inferior to levator scapulae

A

rhomboids

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31
Q

origin: clavicle, sternum, cartilage of ribs 1-6 (or 7), and aponeurosis of external oblique muscle

A

pectoralis major

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32
Q

insertion: fibers converge to insert by short tendon into intertubercular sulcus of humerus

A

pectoralis major

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33
Q

action: prime mover of arm flexion; adducts, medailly rotates arm

A

pectoralis major

34
Q

broad flat muscle of lower back (lumbar region)

A

latissimus dorsi

35
Q

origin: lateral 1/3 of clavicle; acromion and spine of scapulq

A

deltoid

36
Q

insertion: deltoid tuberosity of humerus

A

deltoid

37
Q

action: acting as a whole, prime mover of arm abduction

A

deltoid

38
Q

runs from the shoulder blade to the greater tubercule of humerus

A

supraspinatus

39
Q

infraspinous fossa of scapula

A

infraspinatus

40
Q

located inferiorly to teres minor

A

teres major

41
Q

origin: long head- inferior margin of glenoid cavity; lateral head-posterior humerus; medial head-distal radial groove on posterior humerus

A

triceps brachii

42
Q

insertion: olecranon of ulna

A

triceps branchii

43
Q

action: powerful forearm extensor

A

triceps branchii

44
Q

origin: SHORT HEAD- coracoid process; LONG HEAD- supraglenoid tubercle and lip of glenoid cavity; tendon of long head runs in intertubercular sulcus and within capsule of shoulder joint

A

biceps brachii

45
Q

insertion: base of radial styloid process

A

biceps brachii

46
Q

action: flexion (powerful) and supination of forearm

A

biceps brachii

47
Q

immediately deep to biceps brachii

A

branchialis

48
Q

superficial; runs diagonally across forearm

A

flexor carpi radialis

49
Q

superficial; medial to palmaris longus

A

flexor carpi ulnaris

50
Q

deeper muscle (deep to flexor carpi ulnaris); visible at distal end of forearm

A

flexor digitorum superficialis

51
Q

deep muscle; overlain entirely by flexor digitorum superficialis; upper 3/4 of the anterior and medial surfaces of the ulna

A

flexor digitorum profundus

52
Q

lower portion of the trunk

A

Iliacus

53
Q

side of the lumbar region of the vertebral column and brim of the lesser pelvis

A

psoas

54
Q

origin: anterior superior iliac spine

A

sartorius

55
Q

insertion: by an aponeurosis into medial aspects of proximal tibia

A

sartorius

56
Q

action: flexes, abducts, and laterally rotates thigh; flexes leg

A

sartorius

57
Q

on the medial side of the thigh

A

adductor magnus

58
Q

located in the inner thigh

A

adductor longus

59
Q

medial side of the thigh; groin

A

gracilis

60
Q

located in the buttocks

A

gluteus maximus

61
Q

top of the femur, close to the hip joint

A

gluteus medius

62
Q

deep and somewhat anterior to the gluteus medius

A

gluteus minimus

63
Q

origin: anterior inferior iliac spine and superior margin of acetabulum

A

rectus femoris

64
Q

insertion: tibial tuberosity and patella

A

rectus femoris

65
Q

action: extends leg and flexes thigh

A

rectus femoris

66
Q

lateral aspect of the thigh

A

vastus lateralis

67
Q

front of the thigh

A

vastus medialis

68
Q

lies between vastus lateralis and vastus medialis on anterior thigh

A

vastus intermedius

69
Q

origin: ischial tuberosity (long head); linea aspera and distal femur (short head)

A

biceps femoris

70
Q

Insertion: tendon passes laterally to insert into head of fibula and lateral condyle of tibia

A

biceps femoris

71
Q

extends thigh; flexes leg

A

bicep femoris

72
Q

medial to bicep femoris

A

semitendinosus

73
Q

deep to semitendinosus

A

semimembranosus

74
Q

in front of the lower leg

A

tibialis anterior

75
Q

anterolateral (anterior and lateral) surface of the leg; lateral to tibialis anterior

A

extensor digitorum longus

76
Q

superficial lateral muscle; overlies fibula

A

peroneus muscles

77
Q

origin: by two heads from medial and lateal condyles of femus

A

gastrocnemius

78
Q

insertion: calcaneus via calcaneal tendon

A

gastrocnemius

79
Q

action: plantar flexes foot

A

gastrocnemius

80
Q

back of lower leg a

A

soleus

A&P Lab (1 decks)

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