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Comparative Anatomy > Muscles > Flashcards

Flashcards in Muscles Deck (86)
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1
Q

Superficial pectoral

A

Two parts: descending pectoral, transverse pectoral
Origin: sternebrae 1-2/3
Insertion: crest of greater tubercle of humerus
Innervation: cranial pectoral (C7-8)
Artery: external thoracic artery

2
Q

Deep pectoral

A

Also called: ascending pectoral
Origin: ventral part of sternum; xiphoid cartilage
Insertion: greater & lesser tubercles of humerus
Innervation: caudal pectoral (C8-T1)
Artery: lateral thoracic artery

3
Q

Brachicephalicus

A

Three parts: cleidobrachialis, cleidocephalicus (pars cervicalis, pars mastoidea)
Innervation: accessory, ventral cervical nerves
Artery: superficial cervical artery

4
Q

Cleidobrachialis

A

Origin: clavicular intersection
Insertion: distal end of cranial border of humerus

5
Q

Cleidocephalicus (pars cervicalis)

A

Origin: claviular intersection
Insertion: cranial half of mid-dorsal raphe, nuchal crest, occipital bone

6
Q

Cleidocephalicus (pars mastoidea)

A

Origin: clavicular intersection
Insertion: mastoid part of temporal bone

7
Q

Sternocephalicus

A

Two parts: mastoid, occipital
Origin: manubrium, first sternebrae
Insertion: mastoid process (mastoid part); occipital bone (occipital part)
Innervation: accessory, ventral branches of cervical spinal nerves
Artery: superficial cervical artery

8
Q

Sternohyoideus

A

Origin: first sternebrae, first costal cartilage
Insertion: basihyoid bone
Innervation: ventral branches of cervical spinal nerves
Artery: superficial cervical artery

9
Q

Sternothyroideus

A

Origin: first costal cartilage
Insertion: thyroid cartilage
Innervation: ventral branches of cervical spinal nerves
Artery: superficial cervical artery

10
Q

Omotransversarius

A

Origin: distal end of spine of scapula, wing of atlas
Insertion: distal spine of scapula
Innervation: accessory
Artery: superficial cervical artery

11
Q

Trapezius

A
Two parts: cervical, thoracic
Origin: median raphe of neck, supraspinous ligament from C3-T9
Insertion: spine of scapula
Innervation: accessory
Artery: superficial cervical artery
12
Q

Rhomboideus

A

Three parts: capitis, cervicis, thoracis
Origin: capitis (nuchal crest of occipital bone), cervicis (median raphe of neck), thoracis (spinous processes of T1-7)
Insertion: dorsal border of scapula
Innervation: ventral branches of cervical & thoracic spinal nerves
Artery: superficial cervical artery

13
Q

Latissimus dorsi

A

Origin: thoracolumbar fascia from spinous process of T7-13 & L1-7, last 2-3 ribs
Insertion: teres major tuberosity of humerus, teres major tendon
Innervation: thoracodorsal, cervical spinal nerves C7-T1
Artery: thoracodorsal artery

14
Q

Serratis ventralis

A
Two parts: cervicis, thoracis
Origin: cervicis (transverse processes of C3-7), thoracis (ventral-middle ribs 1-7)
Insertion: serrated face of scapula
Innervation: cervical branches, C7
Artery: external thoracic artery
15
Q

Deltoideus

A

Origin: spine & acromial processes of scapula
Insertion: deltoid tuberosity
Innervation: axillary nerve
Artery: caudal circumflex humeral artery

16
Q

Infraspinatus

A

Origin: infraspinatus fossa
Insertion: lateral side of greater tubercle of humerus
Innervation: suprascpular nerve
Artery: superficial cervical artery

17
Q

Teres minor

A

Origin: infraglenoid tubercle, distal 3rd caudal border of scapula
Insertion: teres minor tuberosity on humerus
Innervation: axillary nerve
Artery: subscapular artery

18
Q

Supraspinatus

A

Origin: supraspinous fossa
Insertion: greater tubercle of humerus
Innervation: suprascapular nerve
Artery: superficial cervical artery

19
Q

Subscapularis

A

Origin: subscapular fossa
Insertion: lesser tubercle of humerus
Innervation: subscapular nerve
Artery: subscapular artery

20
Q

Teres major

A

Origin: caudal border of scapular & caudal border of subscapularis
Insertion: teres major tuberosity of humerus
Innervation: axillary nerve
Artery: subscapular artery, thoracodorsal artery

21
Q

Coracobrachialis

A

Origin: coracoid process of scapula
Insertion: crest of lesser tubercle of humerus
Innervation: musculocutaneous nerve
Artery: superficial cervical artery

22
Q

Tensor fasciae antebrachii

A

Origin: fascia covering lateral side of latissimus dorsi
Insertion: Olecranon
Innervation: radial nerve
Artery: subscapular artery

23
Q

Triceps brachii

A

Four parts: long head, lateral head, medial head, accessory head
Origin: long head (caudal border of scapula), lateral head (tricipital line of humerus), accessory head (neck of humerus), medial head (crest of lesser tubercle of humerus)
Insertion: lecranon tuber of ulna bone
Innervation: radial nerve
Artery: caudal circumflex humeral artery, deep brachial, collateral ulnar

24
Q

Anconeus

A

Origin: lateral supracondylar crest, lateral/medial epicondyles of humerus
Insertion: olecranon
Innervation: radial nerve
Artery: collateral ulnar artery

25
Q

Biceps brachii

A

Origin: supraglenoid tubercle
Insertion: ulnar and radial tuberosities
Innervation: musculocutaneous nerve
Artery: cranial circumflex humeral, bicipital arteries

26
Q

Brachialis

A

Origin: proximal 3rd of lateral face of humerus
Insertion: ulnar & radial tuberosities
Innervation: musculocutaneous nerve
Artery: bicipital artery

27
Q

Extensor carpi radialis

A

Origin: lateral supracondylar crest
Insertion: tuberosities on dorsal base of metacarpals II & III
Innervation: radial nerve
Artery: common interosseous artery

28
Q

Common digital extensor

A

Origin: lateral epicondyle of humerus
Insertion: distal phalanges of digits Ii, III, IV, & V
Innervation: radial nerve
Artery: common interosseous artery

29
Q

Lateral digital extensor

A

Origin: lateral epicondyle of humerus
Insertion: proximal phalanges of digits III, IV, & V
Innervation: radial nerve
Artery: commone interosseous artery

30
Q

Ulnaris lateralis

A
A flexor muscle
Origin: lateral epicondyle of humerus
Insertion: proximal end of metacarpal V
Innervation: radial nerve
Artery: common interosseous artery
31
Q

Supinator

A

Origin: lateral epicondyle of humerus
Insertion: cranial surface of the proximal 4th of radius
Innervation: radial nerve
Artery: common interosseous artery

32
Q

Abductor digiti I longus

A

Origin: lateral border & cranial surface body of ulna, interosseous membrane
Insertion: proximal end of metacarpal I
Innervation: radial nerve
Artery: common interosseous artery

33
Q

Pronator teres

A

Origin: medial epicondyle of humerus
Insertion: medial border of radius
Innervation: median nerve
Artery: common interosseous artery, deep antebrachium artery

34
Q

Flexor carpi radialis

A

Origin: medial epicondyle of humerus, medial border of radius
Insertion: palmar side of base of metacarpals II, III
Innervation: median nerve
Artery: common interosseous artery, deep antebrachium artery

35
Q

Superficial digital flexor

A

Origin: medial epicondyle of humerus
Insertion: palmar surface of middle phalanges of digiti II, III, IV, V
Innervation: median nerve
Artery: common interosseous artery, deep antebrachium artery

36
Q

Flexor carpi ulnaris

A

Two parts: ulnar head, humeral head
Origin: ulnar head (olecranon), humeral head (medial epicondyle of humerus)
Insertion: accessory carpal bone
Innervation: ulnar nerve
Artery: common interosseous artery, deep antebrachium artery

37
Q

Deep digital flexor

A

Three parts: humeral head, ulnar head, radial head
Origin: humeral head (medial epicondyle of humerus), ulnar head (caudal border of ulna), radial head (medial border of radius)
Insertion: flexor tubercle of palmar surface of distal phalanx of each digit
Innervation: median & ulnar nerves
Artery: common interosseous artery, deep antebrachium artery

38
Q

Pronator quadratus

A

Attachments: apposed surfaces of radius & ulnar
Innervation: median nerve
Artery: common interosseous artery, deep antebrachium artery

39
Q

Biceps femoris

A

Origin: sacrotuberous ligament, ischiatic tuberosity
Insertion: patella, tuber calcanei
Innervation: sciatic nerve
Artery: caudal gluteal artery, distal caudal femoral artery

40
Q

Semitendinosus

A

Origin: ischiatic tuberosity
Insertion: tuber calcanei, disto-cranial border/medial body of tibia
Innervation: sciatic nerve
Artery: caudal gluteal artery; proximal, middle, & distal caudal femoral arteries

41
Q

Semimembranosus

A

Origin: ischiatic tuberosity
Insertion: medial condyle of tibia, distal lip of caudal surface of femur
Innervation: sciatic nerve
Artery: caudal gluteal artery; proximal, middle, & distal caudal femoral arteries

42
Q

Sartorius

A

Two parts: cranial parts, caudal part
Innervation: femoral nerve
Artery: iliolumbar artery, superficial circumflex iliac artery

43
Q

Sartorius (cranial part)

A

Origin: crest of ileum, thoracolumbar fascia
Insertion: patella

44
Q

Sartorius (caudal part)

A

Origin: cranial ventral iliac spine, ventral border of ileum
Insertion: cranial border of tibia

45
Q

Gracilis

A

Origin: pelvic symphysis via symphysial tendon
Insertion: cranial border of tibia, tuber clacanei
Innervation: obturator nerve
Artery: deep femoral artery; proximal, middle, & distal caudal femoral arteries

46
Q

Pectineus

A

Origin: iliopubic eminence, pubic tubercle via prepubic tendon
Insertion: caudal face of lip of femur
Innervation: obturator nerve
Artery: deep femoral artery, proximal caudal femoral artery

47
Q

Adductor

A

Origin: pelvic symphysis, ventral surface of pubis and ischium
Insertion: lateral lip of caudal surface of femur
Innervation: obturator nerve
Artery: deep femoral artery, proximal caudal femoral artery

48
Q

Tensor fascira latae

A

Origin: tuber coxae, aponeurosis on ileum
Insertion: lateral femoral fascia
Innervation: cranial gluteal nerve
Artery: lateral circumflex femoral artery

49
Q

Superficial gluteal

A

Origin: lateral border of sacrum, iliac spine
Insertion: third trochanter
Innervation: caudal gluteal nerve
Artery: cranial & caudal gluteal arteries, lateral circumflex femoral artery

50
Q

Middle gluteal

A

Origin: crest/gluteal surface of ileum
Insertion: greater trochanter
Innervation: cranial gluteal nerve
Artery: cranial & caudal gluteal arteries, lateral circumflex femoral arteries

51
Q

Deep gluteal

A

Origin: body of ileum, ischiatic spine
Insertion: cranial part of greater trochanter
Innervation: cranial gluteal nerve
Artery: cranial & caudal gluteal arteries

52
Q

Internal obturator

A

Origin: symphysis pelvis
Insertion: trochanteric fossa of femur
Innervation: sciatic nerve
Artery: medial circumflex femoral artery, caudal gluteal artery

53
Q

Gemelli

A

Origin: lateral surface of ischium
Insertion: trochanteric fossa
Innervation: sciatic nerve
Artery: caudal gluteal artery

54
Q

Quadratus femoris

A

Origin: ventral caudal part of ischium
Insertion: intertrochanteric crest
Innervation: sciatic nerve
Artery: caudal gluteal artery

55
Q

External obturator

A

Origin: ventral surface of pubis and ischium
Insertion: trochanteric fossa
Innervation: obturator nerve
Artery: caudal gluteal artery, medial circumflex femoral artery

56
Q

Quadriceps femoris

A

Four parts: rectus femoris, vastus lateralis, vastus intermedius, vastus medialis
Origin: rectus femoris (ileum), vastus lateralis (proximal/lateral lip of caudal surface of femur), vastus intermedius (lateral side of proximal end of femur), vastus medialis (medial side of proximal end of femur)
Insertion: tibial tuberosity
Innervation: femoral nerve
Artery: lateral circumflex femoral artery, superficial circumflex iliac artery

57
Q

Iliopsoas

A
Two parts: psoas major, iliacus
Origin: psoas major (lumbar vertebrae), iliacus (cranioventral ileum)
Insertion: lesser trochanter
Innervation: lumbar nerve, femoral nerve
Artery: iliolumbar artery
58
Q

Cranial tibial

A

Origin: extensor groove, adjacent articular margin of tibia
Insertion: plantar surface at base of metatarsals I & II
Innervation: fibular nerve
Artery: cranial tibial artery

59
Q

Long digital extensor

A

Origin: extensor fossa of femur
Insertion: extensor processes of distal phalanges of digits II-V
Innervation: fibular nerve
Artery: cranial tibial artery

60
Q

Fibularis longus

A

Origin: lateral condyle of tibia, proximal end of fibula, lateral epicondyle of femur
Insertion: 4th tarsal bone
Innervation: fibular nerve
Artery: cranial tibial artery

61
Q

Gastrocnemius

A

Origin: medial and lateral supracondylar tuberosities of femur
Insertion: proximal dorsal surface of tuber calcanei
Innervation: tibial nerve
Artery: distal caudal femoral artery, popliteal artery

62
Q

Superficial digital flexor

A

Origin: lateral supracondylar tuberosity of femur
Insertion: tuber calcanei & digits II-V
Innervation: tibial nerve
Artery: distal caudal femoral artery, popliteal artery

63
Q

Deep digital flexor

A

Two parts: lateral digital flexor, medial digital flexor
Origin: caudal proximal 2/3rd of tibia, proximal 1/2 of fibula
Insertion: flexor tubercle on base of each distal phalange
Innervation: tibial nerve
Artery: distal caudal femoral artery, popliteal artery

64
Q

Popliteus

A

Origin: lateral epicondyle of femur
Insertion: proximal/caudal surface of tibia
Innervation: tibial nerve
Artery: popliteal artery

65
Q

Longus capitis

A

Origin: transverse processes of cervical vertebrae
Insertion: muscular tubercle of basioccipital bone

66
Q

Longus colli

A

Covers ventral surfaces of vertebral bodies from T6 cranially to C1 (atlas

67
Q

Iliocostalis lumborum

A

Origin: wing of ilium
Insertion: transverse processes of lumbar vertebrae, last 4-5 ribs

68
Q

Iliocostalis thoracis

A

Origin: 12th rib
Insertion: transverse processes of lumbar vertebrae

69
Q

Longissimus thoracis & lumborum

A

Origin: arises from crest of wing of ilium via aponeurosis from supraspinous ligament/spines of lumbar & thoracic vertebrae
Insertion: inserts on transverse processes of lumbar & thoracic vertebrae

70
Q

Longissimus cervicis

A

Origin: cranial continuation of longissimus/cervical & thoracic vertebrae
Insertion: transverse processes of last cervical vertebrae

71
Q

Longissimus capitis

A

Origin: extends from T1-3
Insertion: mastoid part of temporal bone

72
Q

Splenius

A

Origin: cranial border of thoracolumbar fascia, spines of T1-3, median raphe of neck
Insertion: nuchal crest, mastoid part of temporal bone

73
Q

Semispinalis capitis

A

Dorsally: biventer cervicis
Ventrally: complexus

74
Q

Scalenus

A

Attachments: first few ribs, transverse processes of cervial vertebrae

75
Q

Rectus thoracis

A

Small rectangular sheet of muscle lying across costal cartilages of first 4 ribs
Attachments: extends caudally to insert into fascia covering rectus abdominis m.

76
Q

Serratus ventralis

A

Two parts: Cervicis & thoracis

Attachment: serrated face of scapula

77
Q

Serratus dorsalis

A

Two parts: cranialis & caudalis
Origin: thoracolumbar aponeurosis
Insertion: cranialis (craniolateral surface of ribs), caudalis (caudal borders of last 3 ribs)

78
Q

External intercostals

A

Attachments: fibers run caudoventrally from border of one rib to cranial border of rib behind
Action: draw ribs together (respiration)

79
Q

Internal intercostals

A

Attachments: fibers run cranioventrally from cranial border of one rib to caudal border of rib in front
Action: draw ribs together (respiration)

80
Q

Transversus thoracis

A

Muscle of expiration

81
Q

External abdominal oblique

A

Attachment: arises from last ribs & thoracolumbar fascia
Fibers run caudoventrally
Artery:cranial abdominal artery, cranial/caudal epigastric artery, deep circumflex iliac artery

82
Q

Internal abdominal oblique

A

Attachment: arises from thoracolumbar fascia. Attaches on costal arch aponeurosis, rectus abdominis, prepubic tendon, & linea alba
Fibers run cranioventrally
Artery: cranial abdominal artery, cranial/caudal epigastric artery, deep circumflex iliac artery

83
Q

Transversus abdominis

A

Origin: dorsal medial surfaces of last 4-5 ribs, transverse processes of lumbar vertebrae
Insertion: linea alba
Artery: cranial abdominal artery, deep circumflex iliac artery, caudal epigastric artery

84
Q

Rectus abdominis

A

Origin: pubis
Insertion: sternum
Artery: cranial & caudal epigastric arteries

85
Q

Levator ani

A

Origin: medial edge of shaft of ilium, dorsal surface of pubis, pelvic symphysis
Insertion: Cd3-7

86
Q

Coccygeus

A

Origin: ischiatic spine
Insertion: Cd2-4