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First Aid Sections > MSK - Brachial Plexus Especially > Flashcards

MSK - Brachial Plexus Especially Flashcards

1
Q

Upper Trunk

A

C5 C6

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2
Q

Middle Trunk

A

C7

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3
Q

Lower Trunk

A

C8, T1

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4
Q

Anterior Division

A

C5, C7, T1

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5
Q

Posterior Division

A

C6, C7, C8

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6
Q

Lateral Cord

A

musculocutaneous nerve

lateral root of median nerve

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7
Q

medial cord

A

medial root of medial nerve

ulnar nerve

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8
Q

posterior cord

A

axillary nerve

radial nerve

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9
Q

musculocutaneous nerve

A

C5,6,7

flexors

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10
Q

median nerve

A

flexors

C6,7,C8,T1

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11
Q

ulnar nerve

A

C8, T1

skin and forearm of hand

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12
Q

axillary nerve

A

C5,6
deltoid, teres minor
extensors

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13
Q

radial nerve

A

C5-8, T1
triceps
extensors

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14
Q

deltoid

A

arm abduction

axillary nerve

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15
Q

wrist drop

A

radial nerve

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16
Q

Erb Duchenne palsy/waiter’s tip

A 
upper trunk (C5,6)
infants during delivery
pronated forearm
17
Q

Klumpke’s palsy

A 
inferior trunk (C8,T1)
atrophy of thenar and hypothenar muscles
18
Q

ulnar claw

A

can’t extend 4th and 5th digits

19
Q

median claw

A

can’t extend 2nd and 3rd digits

20
Q

cutaneous innervation - palmar side

A

ulnar, median

very small amount of radial

21
Q

cutaneous innervation - dorsal side

A

radial (thumb and and lower 2nd and 3rd fingers)
median - upper 2nd and third fingers
ulnar - the rest

22
Q

cremaster muscle

A

part of internal oblique

pulls in testes when cold

23
Q

tennis elbow muscle

A

extensor carpi radialis brevis

24
Q

medially rotate arm

A

subscapularis

25
Q

recurrent laryngeal nerve is branch of

A

vagus

26
Q

muscles that vagus innervates

A

palatoglossus

27
Q

palatoglossus innervation

A

vagus

28
Q

spiral fracture

A

child abuse

29
Q

most commonly injured muscle of rotator cuff

A

supraspinatus

30
Q

rotator cuff

A

supraspinatus
infraspinatus
teres minor
subscapularis

31
Q

opponens pollicis

A

innervated by median nerve

32
Q

laterally rotate arm

A

infraspinatus

33
Q

dORSAL INTEROSSEOUS MUSCLES

A

ABDUCT

34
Q

palmar interosseous muscles

A

adduct

First Aid Sections (25 decks)

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