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Anatomy > Brachial Plexus > Flashcards

Brachial Plexus Flashcards

1
Q

Name the 5 parts of the brachial plexus

A

RoTonDa CuBao (5 roots, 3 trunks, 6 divisions, 3 cords, 5 branches)

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2
Q

What are the 5 roots of the brachial plexus

A

C5, C6, C7, C8, T1

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3
Q

What are the 3 trunks of the brachial plexus?

A

Superior, middle, inferior

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4
Q

What are the 6 divisions of the brachial plexus?

A

3 anterior, 3 posterior divisions

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5
Q

What are the 3 cords of the brachial plexus

A

Lateral, Posterior, Medial

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6
Q

What are the 5 branches of the brachial plexus

A

Musculocutaneous, Axillary, Radial, Medial, Ulnar

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7
Q

What are the anterior division fibers of the brachial plexus?

A
  1. Musculocutaneous
  2. Ulnar
  3. Median
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8
Q

What are posterior division fiber of the brachial plexus?

A
  1. Radial

2. Axillary

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9
Q

What are the medial cords of your brachial plexus?

A
  1. Median

2. Ulnar

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10
Q

What are the lateral cords of your brachial plexus?

A
  1. Musculocutaneos

2. Median

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11
Q

What innervates the rhomboids?

A

C5 - dorsal scapular

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12
Q

What innervates the serratus anterior?

A

Long thoracic

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13
Q

What innervates the subscapularis?

A

Upper subscapular

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14
Q

What innervates the latissimus dorsi

A

Thoracodorsal

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15
Q

What innervates the deltoid and teres minor?

A

Deltoid and Teres minor

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16
Q

The musculocutaneous nerve innervates what compartment of the arm?

A

anterior compartment

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17
Q

The radial nerve innervates what compartment of the arm?

A

posterior compartment

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18
Q

The ulnar nerve innervates what compartment of the arm?

A

intrinsic muscles of hand

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19
Q

What innervates the FCU and FDP?

A

medial

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20
Q

Erb-duchenne syndrome is due to a lesion in the ____

A

C5 and C6

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21
Q

Waiter’s tip is due to a damage in what nerve

A

C5 and C6

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22
Q

What syndrome?

Arm is adducted, extended, medially rotated, forearm is pronated, carpal flexors flex the hand at the wrist

A

Erb Duchenne

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23
Q

In Erb Duchenne, the sensation is ___ (medial/lateral)

A

lateral

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24
Q

Paralysis of the C8 to T1 results to

A

Klumpke

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25
Q

In Klumpke, the alteration of the sensation is see on the ___ (medial/lateral) aspect of the hand, ring, little finger

A

medial

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26
Q

“ape” hand

“claw” hand

A

Klumpke

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27
Q

What muscles in the upper limb are affected in Klumpke? Distal/proximal

A

Distal

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28
Q

What syndrome

weakness of the wrist and finger flexors due to excessive ABduction of the arm

A

Klumkpe

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29
Q

Winged scapula

A

long thoracic

Serratus anterior

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30
Q

Nerve damage from radical mastectomy, stab wounds, thoracic surgery

A

long thoracic nerve

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31
Q

Nerve damage during surgical procedures of the axilla

A

Thoracodorsal nerve

Latissimus dorsi

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32
Q

Patient have a difficulty elevating the trunk, difficulty using a crutch

A

Thoracodorsal nerve

33
Q

What nerve may be damaged if there is a fracture of the surgical neck

A

axillary nerve

34
Q

what nerve is damaged if the head of the humerus is dislocated?

A

axillary nerve

35
Q

[What damage]

A patient unable to ABduct the arm, altered sensation in the skin covering the deltoid

A

axillary nerve

36
Q

Weakness in lateral rotation is due to a weakness of what muscle?

A

Teres minor muscle

37
Q

Alteration of sensation in the skin covering of the deltoid suggests a damage in what nerve?

A

Axillary nerve

38
Q

This muscle is compressed through the coracobrachialis muscle

A

musculocutaneous nerve

39
Q

patient presents with weakness in flexion of the forearm at the elbow and weakness in supination

A

musculocutaneous nerve

40
Q

Spiral fracture of the midshaft of the humerus can lead to a damage in _____

A

radial nerve

41
Q

Patient felt pain and paresthesia in skin over the first dorsal interosseus muscle between the thumb and index finger

A

Radial nerve lesions

42
Q

“wrist drop”

A

radial nerve

43
Q

weakness in the ability to extend the hand at the wrist and a loss of extension at the MP joints of all digits

A

Radial nerve

44
Q

Crutch pressing upward into the armpit

A

axillary nerve

45
Q

downward shoulder dislocation

A

axillary nerve

46
Q

fractures of the surgical neck of the humerus

A

axillary nerve

47
Q

crutches pressing the axilla

A

radial nerve

48
Q

saturday night palsy

A

radial nerve

49
Q

supracondylar fracture of the humerus

A

median nerve

50
Q

hand of benediction

A

median nerve

51
Q

altered cutaneous sensation-lateral 3 and 1/2 digits and thenar eminence; flexion at wrist; flexion of lateral finger and flesxon of thumb

A

Median nerve

52
Q

Lunate dislocation

A

carpal tunnel syndrome

53
Q

numbness and pain over the palmar aspect of thumb, index, and middle fingers

A

carpal tunnel syndrome

54
Q

___ hand

weakness in opposition of thumb; remains adducted and extended

A

APE hand

55
Q

What nerve is affected in Carpal Tunnel Syndrome

A

Median Nerve

56
Q

part of the body

formed posteriorly by the concave surfaces of the carpal bones and anteriorly by a thickening of the deep fascia

A

flexor retinaculum

57
Q

The median nerve is entrapped here leading to Carpal Tunnel Syndrome

A

Flexor retinaculum / Transverse carpal ligament

58
Q

What tendons pass through the carpal tunnel?

A
  1. FDS x 4 tendons
  2. FDP x 4 tendons
  3. FPL x 1 tendon
59
Q

What lies between the tendons of the FDS and FCR

A

median nerve

60
Q

What tendon is directly medial to the to the median nerve?

A

FDS

61
Q

What tendon is directly lateral to the median nerve

A

FCR

62
Q

damage to the median nerve leads to pins and needles sensation. What is its distribution

A
  1. Lateral 3 1/2 of fingers

2. Weak thenar muscles

63
Q

What branch of the median nerve passes superficially to the flexor retinaculum resulting to paresthesia

A

palmar cutaneous branch of the median nerve

64
Q

medial epicondyle fractures

A

ulnar nerve

65
Q

weakness in the flexion of medial fingers

weakness in wrist flexion

altered sensation of the medial 1 and 1/2 digits

A

ulnar nerve

66
Q

Fracture of the hook of hamate

A

ulnar nerve

67
Q

claw hand

A

ulnar nerve

68
Q

weakness in the ability to ABduct/ADduct fingers

A

ulnar

69
Q

crutch palsy

A

radial nerve

70
Q

surgical neck fracture of humerus

A

axillary

71
Q

midshaft spiral fractures humerus

A

radial nerve

72
Q

supracondylar fracture of the humerus

A

median nerve

73
Q

medial epicondyle fracture

A

ulnar nerve

74
Q

hook of hamate fracture

A

ulnar nerve

75
Q

What are the branches of the lateral cord

A
  1. Musckulocutaneous

2. Median

76
Q

What are the branches of the medial cord?

A
  1. Median

2. Ulanr

77
Q

What are the branches of the posterior cord?

A
  1. Axillary

2. Radial

78
Q

What innervates the reginmental badge area in the deltoid?

A

axillary nerve

Anatomy (37 decks)

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