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Anatomy U of A > UE Nerves and Nerve Roots > Flashcards

UE Nerves and Nerve Roots Flashcards

1
Q

Nerves receive their contribution from how many nerve roots?

A

One or more - cable with a bundle of wire where axons of nerve roots form the wire within the bundle

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2
Q

Origin of nerve and nerve root: Dorsal scapular nerve

A

C5 nerve root - often get a contribution from C4

C4-5

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3
Q

Origin of nerve and nerve root: Long thoracic nerve

A

C5-7 nerve root

C5-7

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4
Q

Origin of nerve and nerve root: Suprascapular nerve

A

sup trunk

C5-6

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5
Q

Origin of nerve and nerve root: nerve to subclavius

A

sup trunk

C5-6

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6
Q

Origin of nerve and nerve root: lat pectoral nerve

A

lat cord

C5-7

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7
Q

Origin of nerve and nerve root: sup subscapular nerve

A

pos cord

C5-6

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8
Q

Origin of nerve and nerve root: middle/thoracodorsal subscapular nerve

A

pos cord

C6-8

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9
Q

Origin of nerve and nerve root: inf subscapular nerve

A

pos cord

C5-7 - before was 5-6 until 97% of cadavers should contribution of 7

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10
Q

Origin of nerve and nerve root: medial pectoral nerve

A

medial cord

C8-T1 or C5-T1 - typically communication from lat pectoral nerve (c5-c7) via ansa pectoralis

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11
Q

Origin of nerve and nerve root: medial cutaneous of arm nerve

A

med cord

C8-T1

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12
Q

Origin of nerve and nerve root: medial cutaneous nerve of forearm

A

med cord

C8-T1

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13
Q

Origin of nerve and nerve root: musculocutaneous nerve

A

lat cord

C5-7

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14
Q

Origin of nerve and nerve root: axillary nerve

A

pos cord

C5-6

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15
Q

Origin of nerve and nerve root: radial nerve

A

pos cord

C5-T1 median nerve

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16
Q

Origin of nerve and nerve root: median nerve

A

lat&medial cords

C5-T1

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17
Q

Origin of nerve and nerve root: ulnar nerve

A

med cord

C7-T1

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18
Q

Why the nerve root innervation to muscle is different from nerve roots

A

Muscles don’t always receive contribution from all the nerve roots that contribute to the nerve cable made up of axons of each nerve root within the bundle - nerves may send wires from all or only some of the nerve roots to the branch

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19
Q

Nerve supply and roots of: deltoid

A

axillary nerve

C5-6

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20
Q

Nerve supply and roots of: pectoralis maj (clavicular head)

A

lat pectoral and part of medial pectoral

C5-6

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21
Q

Nerve supply and roots of: Pectoralis major (sternal head)

A

lat pectoral and part of medial pectoral

C6-T1

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22
Q

Nerve supply and roots of: Pec minor

A

medial pectoral nerve
C8-T1/C5-T1
connection with lat pectoral nerve from ansa pectoralis

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23
Q

Nerve supply and roots of: serratus ant

A

long thoracic nerve

C5-C7

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24
Q

Nerve supply and roots of: trapezius

A

motor - spinal accessory nerve
CN XI
sensory - ant rami C3-4
C3-4

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25
Q

axioappendicular muscles - 5

A

connect axial skeleton to shoulder girdle

  • trap
  • levator scapula
  • rhomboid maj & min
  • lat dorsi
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26
Q

Nerve supply and roots of: levator scapula

A

branches from an rami of C3-4
C3-4
Branches from dorsal scapular nerve
C5

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27
Q

Nerve supply and roots of: rhomboid maj

A

Dorsal Scapular nerve

C4-5

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28
Q

Nerve supply and roots of: Rhomboid Min

A

dorsal scapular nerve

C4-5

29
Q

Nerve supply and roots of: Lat dorsi

A

thoracodorsal (middle subscapular)

C6-8

30
Q

scapulohumeral muscles - 6

A

connect scapula with humerus

  • deltoid
  • teres maj
  • supraspinatus
  • infraspinatus
  • teres min
  • subscapularis
31
Q

Nerve supply and roots of: deltoid

A

axillary nerve

C5-6

32
Q

Nerve supply and roots of: teres maj

A

lower subscapular nerve

C5-7

33
Q

Nerve supply and roots of: supraspinatus

A

suprascapular nerve

C5-6

34
Q

Nerve supply and roots of: infraspinatus

A

suprascapular nerve

C5-6

35
Q

Nerve supply and roots of: teres minor

A

axillary nerve

C5-6

36
Q

Nerve supply and roots of: subscapularis

A

upper and lower subscapular nerves

C5-7

37
Q

Nerve supply and roots of: coracobrachialis

A

musculocutaneous nerve

C5-7

38
Q

Nerve supply and roots of: biceps brachii

A

Nerve supply and roots of:

C5-6

39
Q

Nerve supply and roots of: brachialis

A

Nerve supply and roots of:

C5-7

40
Q

Nerve supply and roots of: triceps

A

radial

C6-8

41
Q

Nerve supply and roots of: anconeous

A

radial

C6-8

42
Q

Nerve supply and roots of: pronator teres

A

median nerve

C6-7

43
Q

Nerve supply and roots of: flexor carpi radialis

A

median

C6-7

44
Q

Nerve supply and roots of: palmaris longus

A

median

C7-8

45
Q

Nerve supply and roots of: flexor carpi ulnaris

A

Ulnar

C7-T1

46
Q

Nerve supply and roots of: flexor digitorum superficialis

A

median

C8-T1

47
Q

Nerve supply and roots of: flexor digitorum profundus - digits 2& 3

A

ant interosseous nerve

C8-T1

48
Q

Nerve supply and roots of: flexor digitorum profundus - diits 4& 5

A

ulnar nerve

C8-T1

49
Q

Nerve supply and roots of: flexor pollicis longus

A

ant interosseous nerve

C7-8

50
Q

Nerve supply and roots of: pronator quadratus

A

ant interosseous nerve

C7-8

51
Q

Nerve supply and roots of: brachioradialis

A

radial

C5-6

52
Q

Nerve supply and roots of: extensor carpi radialis longus

A

radial

C6-7

53
Q

Nerve supply and roots of: extensor carpi radialis brevis

A

deep branch of radial

C7-8

54
Q

Nerve supply and roots of: supinator

A

deep branch of radial

C6-7

55
Q

Nerve supply and roots of: extensor digitorum

A

pos interosseous nerve

C7-8

56
Q

Nerve supply and roots of: extensor digiti minimi

A

pos interosseous

C7-8

57
Q

Nerve supply and roots of: extensor carpi ulmaris

A

pos interosseous

C7-8

58
Q

Nerve supply and roots of: Extensor pollicis longus

A

pos interosseous

C7-8

59
Q

Nerve supply and roots of: extensor pollicis brevis

A

pos interosseous

C7-8

60
Q

Nerve supply and roots of: abductor pollicis longus

A

pos interosseous

C7-8

61
Q

Nerve supply and roots of: extensor indicis

A

pos interosseous

C7-8

62
Q

Nerve supply and roots of: thenar muscles of hand

A

flexor pollicis brevis
abductor pollicis brevis
opponens pollicis
median nerve - recurrent branch - C8-T1

63
Q

Nerve supply and roots of: hypothenar muscles of hand

A 
abductor digiti minimi 
flexor digiti minimi brevis 
opponens digiti minimi 
ulnar nerve - deep branch 
C8-T1
64
Q

Nerve supply and roots of: adductor pollicis

A

ulnar nerve - deep branch

C8-T1

65
Q

Nerve supply and roots of: lumbricals 1&2nd digits

A

median nerve - digital branches

C8-T1

66
Q

Nerve supply and roots of: lumbricals 3&4th digits

A

ulnar nerve - deep branch

C8-T1

67
Q

Nerve supply and roots of: palmar interossei

A

ulnar nerve deep branch

C8-T1

68
Q

Nerve supply and roots of: Dorsal Interossei

A

ulnar nerve deep branch

C8-T1

Anatomy U of A (3 decks)

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