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Anatomy - musc > Action and Innervation > Flashcards

Action and Innervation Flashcards

1
Q

Splenius Capitis: Innervation

A

Dorsal rami of spinal nerve

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2
Q

Splenius Capitis: Action

A

Alone: Laterally bend and rotate the head. Together: extend head and neck

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3
Q

Splenius cervicis: Innervation

A

Dorsal rami of spinal nerve

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4
Q

Splenius cervicis: Action

A

Alone: Laterally bend and rotate the head. Together: extend head and neck

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5
Q

Erector Spinae: Iliocostaslis: Innervation

A

Dorsal rami of spinal nerve

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6
Q

Erector Spinae: Iliocostaslis: Action

A

Bilaterally, extend the vertebral column and head, unilaterally they laterally bend the vertebral column, keep the spine erect

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7
Q

Erector Spinae: longissimus: Innervation

A

Dorsal rami of spinal nerve

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8
Q

Erector Spinae: longissimus: Action

A

Bilaterally, extend the vertebral column and head, unilaterally they laterally bend the vertebral column, keep the spine erect

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9
Q

Erector Spinae: Spinalis: Innervation

A

Dorsal rami of spinal nerve

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10
Q

Erector Spinae: Spinalis: Action

A

Bilaterally, extend the vertebral column and head, unilaterally they laterally bend the vertebral column, keep the spine erect

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11
Q

Transversospinalis: Semispinalis: Innervation

A

dorsal rami of spinal nerves

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12
Q

Transversospinalis: Semispinalis: Action

A

Extend head and thoracic cervical regions of vertebral column and rotate contralaterally

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13
Q

Transversospinalis: Multifidius: Innervation

A

Dorsal rami of spinal nerve

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14
Q

Transversospinalis: Multifidius: Action

A

Stabilizes vertebrae during local movements of vertebral column

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15
Q

Transversospinalis: Rotatores: Innervation

A

Dorsal rami of spinal nerve

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16
Q

Transversospinalis: Rotatores: Action

A

Stabilize vertebrae and assist with local extension and rotary movements of vertebral column

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17
Q

Interspinales: innervation

A

Dorsal rami of spinal nerve

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18
Q

Interspinales: action

A

extension and rotation of vertebral column

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19
Q

Intertransversarri: Innervation

A

Dorsal rami of spinal nerves

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20
Q

Intertransversarri: Action

A

lateral bending of vertebral column

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21
Q

Levatores costarum: innervation

A

Dorsal rami of C8-T11 spinal nerve

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22
Q

Levatores costarum: action

A

elevate ribs, inspiration, lateral bending of vertebral column

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23
Q

Pectoralis Major: Innervation

A

Medial and lateral nerve

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24
Q

Pectoralis Major: Action

A

adducts arm, rotates medially/ internal rotation, flexion

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25
Q

Pectoralis Minor: Innervation

A

medial nerve

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26
Q

Pectoralis Minor: action

A

depresses shoulder, elevates the ribs

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27
Q

Subclavius: Innervation

A

Subclavical nerve

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28
Q

Subclavius: Action

A

Depress the clavicle, stabilization

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29
Q

Serratus anterior: Innervation

A

Long thoracic nerve

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30
Q

Serratus anterior: Action

A

protracts scapula, rotates scapula upward

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31
Q

Trapezius: Innervation

A

Spinal portion of accessory nerve and ventral rami C3- C4

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32
Q

Trapezius: Action

A

elevate the scapula, middle: retracts scapula, lower: pulls scapula downward. Together: rotate scapula upward

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33
Q

Latissimus dorsi: Innervation

A

Thoraco-dorsal nerve

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34
Q

Latissimus dorsi: Action

A

Extends, adducts and medially rotates the arm, stabilize trunk

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35
Q

Levator Scapulae: Innervation

A

Ventral rami of C3 -C4 and dorsal scapular nerve

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36
Q

Levator scapulae: Action

A

Elevates medial border of scapula upward and medially

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37
Q

Rhomboid minor: Innervation

A

Dorsal Scapular nerve (c5)

38
Q

Rhomboid minor: Action

A

Elevates medial border or scapula upward and medially

39
Q

Rhomboid major: Innervation

A

Dorsal scapular nerve (C5)

40
Q

Rhomboid major: Action

A

Elevates medial border of scapula and medially and retracts the scapula

41
Q

Deltoid: Innervation

A

Axillary nerve

42
Q

Deltoid: Action

A

Intermediate: Abduction
Anterior: Flexion and internally rotate
Posterior: Extend and external rotation

43
Q

Supraspinatus: Innervation

A

Suprascapular nerve

44
Q

Supraspinatus: Action

A

Abducts arm and stabilizes shoulder

45
Q

Infraspinatus: Innervation

A

Suprascapular nerve

46
Q

Infraspinatus: Action

A

External rotation of arm and stabilizes shoulder joint

47
Q

Teres major: Innervation

A

Lower subscapular nerve

48
Q

Teres major: Action

A

Internal rotation and adducts arm, stabilizes shoulder

49
Q

Teres minor: Innervation

A

Axillary nerve

50
Q

Teres minor: Action

A

External rotation and stabilizes joint

51
Q

Subscapularis: Innervation

A

Upper and Lower subscapular nerves

52
Q

Subscapularis: Action

A

internal rotation of arm and stabilizes shoulder joint

53
Q

Biceps brachii long head: Innervation

A

Musculocutaneous nerve

54
Q

Biceps brachii long head: Action

A

supinator of forearm
flexor of elbow
weak flexor of shoulder joint

55
Q

Biceps brachii short head: Innervation

A

musculocutaneous nerve

56
Q

Biceps brachii short head: Action

A

forearm supinator,
elbow flexor
weak shoulder flexor

57
Q

Coracobrachialis: Innervation

A

Musculocutaneous nerve

58
Q

Coracobrachialis: Action

A

Arm flexor

weak arm adduction

59
Q

Brachialis: Innervation

A

musculocutaneous nerve

60
Q

Brachialis: Action

A

Elbow flexor

61
Q

Ticeps long head: innervation

A

radial nerve

62
Q

Triceps long head: action

A

Elbow extensor

Weak extensor and adductor of shoulder

63
Q

Tricpes lateral head: innervation

A

radial nerve

64
Q

Triceps lateral head: Action

A

elbow extensor

65
Q

Triceps medial head: Innervation

A

radial nerve

66
Q

Triceps medial head: Action

A

elbow extensor

67
Q

Pronator teres humeral head: Innervation

A

Median nerve

68
Q

Pronator teres humeral head: Action

A

Pronation and flexion of forearm

69
Q

Pronator teres ulnar head: Innervation

A

Median nerve

70
Q

Pronator teres ulnar head: Action

A

Pronation and flexion of forearm

71
Q

Flexor carpi radialis: Innervation

A

Median nerve

72
Q

Flexor carpi radialis: Action

A

Flexes and abducts hand at wrist;

weak forearm flexor and pronator

73
Q

Palmaris longus: Innervation

A

Median nerve

74
Q

Palmaris Longus: Action

A

wrist flexor

75
Q

Flexor carpi ulnaris humeral head: Innervation

A

Ulnar nerve

76
Q

Flexor carpi ulnaris humeral head: Action

A

Flexes and adducts the hand

77
Q

Flexor carpis ulnaris ulnar head: Innervation

A

Ulnar nerve

78
Q

Flexor carpis ulnaris ulnar head: Action

A

Flexes and adducts hand

79
Q

Flexor digitorum superficialis humeral head and radial head: Innervation

A

Median nerve

80
Q

Flexor digitrum superficialis humeral head and redial head: action

A

flexes middle phalanx and assists in flexing proximal phalanx and hand

81
Q

Flexor policis longus: Innervation

A

Anterior branch of median nerve

82
Q

Flexor policis longus: action

A

flexor of distal phlanax of thumb

83
Q

Flexor digitorum profundus : Innervation

A

Ulnar nerve and median nerve

84
Q

Flexor digitorum profundus: Action

A

Flexes distal interphalangeal joints of fingers, assist in flexion of middle and proximal phalanges and wrist

85
Q

Pronator quadratus: Innervation

A

Anterior interosseous branch of median nerve

86
Q

Pronator quadratus: Action

A

Pronates forearm

87
Q

Extensor carpi radialis longus: Innervation

A

Radial nerve

88
Q

Extensor carpi radialis longus: Action

A

Extends and abduction the hand: Weak elbow flexor

89
Q

Extensor carpi radialis brevis: Innervation

A

Deep branch of radial nerve

90
Q

Extensor carpi radialis brevis: Action

A

Hand extensor and abductor at wrist joint

91
Q

Extensor digitorum: Innervatoin

A

Posterior interosseous nerve

92
Q

Extensor digitorum: action

A

Extends MP joint and hand

Anatomy - musc (1 decks)

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