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Peripheral anatomy Flashcards

1
Q

myotome C5?

A

shoulder abduction

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2
Q

myotome C6?

A

elbow flexion wrist extension

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3
Q

myotome C7?

A

elbow extension wrist flexion

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4
Q

myotome C8?

A

finger flexion

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5
Q

myotome T1?

A

finger abduction

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6
Q

dermatome C5?

A

deltoid

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7
Q

dermatome C6?

A

index finger

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8
Q

dermatome C7?

A

middle finger

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9
Q

dermatome C8?

A

little finger

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10
Q

dermatome T1?

A

inner arm

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11
Q

what cord does radial nerve come from?

A

posterior cord

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12
Q

what cord does median nerve come from?

A

medial cord

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13
Q

what cord does ulnar nerve come from?

A

medial cord

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14
Q

what cord does musculocutaneous nerve come from?

A

lateral

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15
Q

what nerve does axillary nerve come from?

A

posterior

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16
Q

median nerve motor functions?

A

LOAF: lateral 2 lumbricals, opponens brevis, abductor pollicis brevis, felxor pollicis brevis

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17
Q

whats the sensory innervation of median nerve?

A

1st, 2,nd, 3rd and lateral half of 4th digit

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18
Q

whats the motor innervation of ulnar nerve?

A

intrinsic muscles of hand lumbricals, hypothenar and interossei

19
Q

whats the sensory innervation of ulnar nerve?

A

median half of 4th digit and 5th digit

20
Q

what muscles make up the shoulder girdle?

A
  • trapezius
  • serratus anterior
  • rhomboids
21
Q

what can winging scapula be caused by?

A

nerve lesion or myopathy

22
Q

whats the most common nerve lesion of winging scapula and what muscle does it innervate?

A
  • long thoracic
  • serratus anterior
23
Q

whats the second most common nerve lesion of winging scapula and what muscle does it innervate?

A
  • accessory nerve
  • trapezius
24
Q

whats the least common nerve lesion of winging scapula and what muscle does it innervate?

A
  • dorsal scapular nerve
  • rhomboids
25
Q

whats the muscle that controls shoulder abduction and the nerve that innervates this muscle?

A

deltoid
- axillary nerve

26
Q

whats the nerve root, trunk and cord for deltoid?

A

C5, upper trunk, posterior cord

27
Q

what cord

28
Q

what muscles involved in shoulder adduction?

A

Pectoralis major
Latissimus dorsi

29
Q

what nerves innervate pectoralis major and latissimus dorsi?

A

pectoral nerves (PM)
thoracodorsal (LD)

30
Q

what nerve roots innervate pectoral and throacodorsal nerves?

A

PM: C5-T1
LD: C6-C8

31
Q

what muscle and nerve is involved in elbow flexion?

A

biceps and musculcut.

32
Q

what nerve root, trunk and cord is involved in elbow flexion?

A

C6, upper trunk, lateral

33
Q

what muscle and nerve is involved in elbow extension?

A

triceps and radial

34
Q

what nerve root, trunk and cord innervate elbow extension?

A

C7, upper middle and lower trunk, posterior cord

35
Q

what muscle and nerve is involved in wrist extentension?

A

extensor carpi radialis and radial

36
Q

what nerve root, trunk and cord involved in wrist extension?

A

C7/8, upper and lower trunk, posterior cord

37
Q

what muscle and nerve involved in wrist flexion?

A

flexor carpi ulnairs, ulnar

38
Q

what nerve root, trunk and cord involved in wrist flexion?

A

C7/C8, middle and lower trunk, medial cord

39
Q

what muscle and nerve involved in finger flexion?

A

FDS/FDP and median (and ulnar)

40
Q

what nerve root, trunk and cord involved in finger flexion?

A

C8, lower trunk, medial cord

41
Q

what muscle and nerve involved in finger extension?

A

extensor digitorum and radial

42
Q

what nerve root, trunk and cord involved in finger? extension

A

C8, lower trunk, posterior cord

43
Q

what muscle and nerve involved in finger abduction?

A

dorsal interossei and ulnar

44
Q

what nerve root, trunk and cord involved in finger abduction?

A

T1, lower trunk and medial cord

Neuroanatomy (11 decks)

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