upper limb anatomy Flashcards

1
Q

what spinal roots does the brachial plexus enter out of

A

C5-T1

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2
Q

what roots does the musculocutaneous nerve come from

A

C5-7

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3
Q

movement musculocutaneous nerve

A

elbow flexion + suppination

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4
Q

sensory musculocutaneous nerve

A

lateral forarm

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5
Q

common injury to musculocutaneous nerve

A

usually brachial plexus injury

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6
Q

axillary nerve roots

A

C5,6

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7
Q

axillary nerve motor

A

shoulder abduction (deltoid)

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8
Q

sensory axillary nerve

A

inferior region deltoid (badge patch)

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9
Q

injury to axillary nerve

A

humeral neck fracture/ dislocation –> flat deltoid

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10
Q

radial nerve roots

A

C5-8

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11
Q

motor radial nerve

A

extension of forearm, wrist, finger, thumb

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12
Q

sensory radial nerve

A

dorsal aspect between thumb and pointer finger

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13
Q

injury to radial nerve

A

humeral midshaft fracture –> wrist drop

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14
Q

median nerve motor

A

LOAF muscles - supply to most of muscles in anterior forearm (abduction, flexion, opponation thumb)

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15
Q

median nerve sensory

A

palmer 3.5 lateral fingers

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16
Q

wrist injurt to median nerve

A

carpal tunnel –> paralysis of thumb muscles

17
Q

elbow injury median nerve

A

loss of pronation, weak flexion

18
Q

ulnar nerve motor

A

intrinsic hand except LOAF - finger extension

19
Q

sensory ulnar nerve

A

medial 1.5 fingers

20
Q

damage ulnar nerve

A

medial epicondlye fracture –> claw hand

21
Q

long thoracic nerve innervation

A

serratus anterior

22
Q

long thoracic injury

A

during sport blow to ribs/ mastectomy –> winged scapula

23
Q

muscles of rotator cuff

A

SItS // supraspinatus, infraspinatus, teres minor, subsacpularis

24
Q

most commonly injured rotator cuff muscles

A

supraspinatus

25
which rotator cuff muscle abducts the arm
supraspinatus
26
which rotator cuff muscles adduct to the arm
teres minor and subscapularis
27
which rotator cuff muscles medially rotate the arm
supscapularis
28
which rotator cuff muscles laterally rotate the arm
infraspinatus, teres minor