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gross anatomy exam 1 > exam 1 muscles > Flashcards

exam 1 muscles Flashcards

1
Q

intervation and action of trapezius

A

spinoaccessory (XI) and ventral rami of C3 and C4

retract and UR

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2
Q

action and innervation levator scapula

A

elevates
DR
-ventral rami of C4-5 (dorsal scapular)

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3
Q

action and innervation of rhomboid major

A
  • DR
  • retract
  • elevate
  • ventral rmai of C4-5 (dorsal scapular)
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4
Q

action and innervaiton of rhomboid minor

A

-DR
-retract
-elevate
ventral rami of C4-5 (dorsal scapular)

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5
Q

action and innervation of latissimus dorsi

A
  • ext arm
  • add arm
  • internal rotation arm
  • DR scap
  • ventral rami of C6-8 (thoracodorsal)
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6
Q

action and innervation of the iliocostalis

A

bilateral = extend back
unilateral= lateral flex
dorsal rami of spinal nerve

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7
Q

action and innervation of longissimus

A

bilateral = extend back
unilateral = lateral flex
dorsal rami of spinal nerve

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8
Q

action and innervation of spinalis

A

bilateral = extend back
unilateral = lateral flex
dorsal rami of spinal nerve

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9
Q

action and innervation of splenius capitus/cervicis

A

bilateral = extend head and neck
unilateral = lateral flex and rotate neck
dorsal rami of spinal nerve

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10
Q

action of semispinalis capitus/cervicis

A 
bilateral = extend head and neck
unilateral = lat flex and contralat rotate neck
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11
Q

action and innervation of semispinalis

A

bilateral = small movements of rotation and extension

dorsal rami of spinal nerve

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12
Q

action and innervation of multifidus

A

bilateral = small movements of rotation and extension

dorsal rami of spinal nerve

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13
Q

action and innervation of rotatores brevis and longus

A

bilateral = small movements of rotation and extension

dorsal rami of spinal nerve

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14
Q

action and innervation of rectus capitus posterior major

A 
bilateral = extend head
unilateral = rotation
suboccipital nerve (doral rami of C1)
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15
Q

action and innervation of rectus capitus posterior minor

A 
extend head
suboccipital nerve (dorsal rami of C1)
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16
Q

action and innervation of obliquus capitus superior

A 
bilateral = extend
unilateral = lat flex
suboccipital nerve (dorsal rami of C1)
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17
Q

action and innervation of obliquus capitus inferior

A 
rotation
suboccipital nerve (dorsal rami of C1)
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18
Q

action and innervation of SCM

A

-bilateral: flex neck and raise sternum
-unilateral: lat flex and turn face up and contralaterally
CN XI accessory

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19
Q

action and innervation of mylohyoid

A

-elevate hyoid
-elevate floor of mouth
-elevate tongue during swallowing
CN V3 (inferior alveolar)

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20
Q

action and innervation of stylohyoid

A

elevate/retract hyoid

CN VII facial

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21
Q

action and innervation of digastric anterior belly

A

-elevate hyoid
-depress mandible during swallowing
CN V3 (inferior alveolar)

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22
Q

action and innervation of digastric posterior belly

A

-elevate hyoid
-depress mandible during swallowing
CN VII facial

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23
Q

action innervation of sternohyoid

A

depress hyoid after swallowing

branch of cervical plexus

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24
Q

action and innervation of omohyoid

A

depress, retract, and steady hyoid

branch of cervical plexus

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25
Q

innervation of thyrohyoid

A

ventral rami of C1 via CN XII

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26
Q

action and innervation of anterior scalene

A

-unilateral: lat flex neck
-elevate 1st rib w/ inspiration
branch of cervical plexus

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27
Q

actions and innervation of middle scalene

A

unilateral: lat flex neck
elevate 1st rib during inspiration
branch of cervical plexus

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28
Q

actions and innervation of longus coli

A

bilateral; flex neck
unilateral: lat flex
branch of cerival plexus

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29
Q

action and innervation of longus capitis

A

bilateral: flex neck
unilateral: lat flex
branch of cervical plexus

30
Q

action and innervation of deltoid

A

ant: flex/MR
mid: SBD
post: ext/LR
axillary nerve

31
Q

action and innervation of supraspinatus

A

assit in ABD

suprascapular

32
Q

action and innervation of infraspinatus

A

LR
hold humerus in gelnoid cavity
suprascapular

33
Q

action and innervation of teres minor

A

-LR
-hold humerus in glenoid cavity
axillary nerve

34
Q

action and innervationof teres major

A

-MR
-ADD
lower subscapular

35
Q

action and innervation of all tricep brachii

A

extend arm

radial nerve

36
Q

action and innervation of pronator teres

A

pronate and flex arm

median nerve

37
Q

action and innervation of flexor carpi radialis

A

flex wrist
radial devation
-median nerve

38
Q

action and innervation of palmaris longus

A
  • flex hand

- median nerve

39
Q

action and innervation of flexor carpi ulnaris

A

flex wrist
ulnar devation
-ulnar nerve

40
Q

action and innervation of flexor digitorum superficialis

A

flex PIP
flex MP
-median nerve

41
Q

action and innervation of flexor digitorum profundus

A

flex DIP
assist in wrist flexion
-digits 4,5 = ulnar nerve
-digits 2,3 = ant interosseous (median)

42
Q

action and innervation of flexor pollicis longus

A

flex phalanges of thumb

-anterior interosseous (median)

43
Q

action and innervation of pronator quadratus

A

pronate

-anterior inerosseous (median)

44
Q

action and innervation of supinator

A

supination

-deep branch of radial

45
Q

action and innervation of opponens pollicis

A

oppose thumb

-recurent branch of median

46
Q

aciton and innervation of flexor pollicis brevis

A

flex thumb

-recurrent branch of median

47
Q

action and innervation of abductor pollicis brevis

A

abduct thumb

-recurrent branch of median

48
Q

action and innervation of adductor pollicis

A

adduct thumb

-deep branch of ulnaar

49
Q

action and innervation of opponens digiti minimi

A

oppose 5th finger

-deep branch of ulnar

50
Q

action and innervation of flexor digiti minimi

A

flex 5th digit @proximal phalanx

-deep branch of ulnar

51
Q

action and innervation of abductor digiti minimi

A

abduct 5th finger

-deep branch of ulnar

52
Q

action and innervation of lumbrical muscles

A

flex MP joints
extend IP joints of 2-5 digits
-digits 1 and 2=median
-digits 3 and 4 = deep branch of ulnar

53
Q

action and innervation of dorsal interossei

A

abduct 2-4 digits

-deep branch of ulnar

54
Q

action and innervation of palmar interossei

A

adduct digits 2-5

-deep branch of ulnar

55
Q

action and innervation of pec major

A

adduct humerus
flex arm
MR
-lateral and medial pectoral nerve

56
Q

action and innervation of pec minor

A

DR
protract
-lateral pectoral nerve

57
Q

action and innervation of biceps brachii

A

flex arm (in supinated position)
supinate
-musculocutaneous

58
Q

action and innervation of coracobrachialis

A

flex arm
adduct arm
-musculocutaneous

59
Q

action and innervation of brachialis

A 
flex arm (prone position)
-musculocutaneous
60
Q

action and innervation of subscapularis

A

adducts humerus
MR
-upper and lower subscapular nerve

61
Q

action and innervation of serratus anterior

A

protract
UR
-long thoracic nerve

62
Q

action and innervation of brachioradialis

A

flex at elbow (in neutral position)

-radial nerve

63
Q

action and innervation of extensor carpi radialis longus

A

extend wrist
radial deviate
-radial nerve

64
Q

action and innervation of extensor carpi radialis brevis

A

extend wrist
radial deviate
-deep branch of radial nerve

65
Q

action and innervation of extensor digitorum

A

extend elbow
extend hand at wrist
extend digits 2-5
-deep branch of radial nerve

66
Q

action and innervation of extensor digiti minimi

A

extend 5th digit

-deep branch radial nerve

67
Q

action and innervation of extensor carpi ulnaris

A

extend wrsit
ulnar deviate
-deep branch of radial nerve

68
Q

action and innervation of abductor pollicis longus

A

abduct thumb

-posterior inerosseous (radial nerve)

69
Q

action and innervation of extensor pollicis brevis

A

extend proximal phalanx at MCP

-posterior interosseous (radial nerve)

70
Q

action and innervation of extensor pollicis longus

A

extend distal phalnx at IP joint

-posterior interousseous (radial nerve)

71
Q

extensor indicis

A

extend 2nd digit

-posteior interosseous (radial nerve)

gross anatomy exam 1 (16 decks)

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