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Physiology MRCP > Upper limb anatomy > Flashcards

Upper limb anatomy Flashcards

1
Q

Musculocutaneous nerve - nerve roots

A

C5-7

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2
Q

Musculocutaneous nerve - motor

A

Elbow flexion and supination

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3
Q

Musculocutaneous nerve - sensory

A

Lateral part of forearm

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4
Q

Axillary nerve - nerve roots

A

C5-6

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5
Q

Axillary nerve - motor

A

Shoulder abduction

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6
Q

Axillary nerve - sensory

A

Regimental badge area

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7
Q

Axillary nerve - mechanism of injury and features

A

Humeral neck fracture/dislocation
Causes flattened deltoid

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8
Q

Radial nerve - nerve roots

A

C5-8

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9
Q

Radial nerve - motor

A

Extension of forearm, wrist, fingers and thumb

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10
Q

Radial nerve - sensory

A

Small area dorm of hand between 1st and 2nd metacarpal

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11
Q

Radial nerve - mechanism of injury and features

A

Humeral mid shaft fracture
Wrist drop

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12
Q

Median nerve - nerve roots

A

C6, C8-T1

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13
Q

Median nerve - motor

A

LOAF muscles
- lateral 2 lumbricals
- Opponens collis
- Abductor polices brevis
- Flexor polls brevis

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14
Q

Median nerve - sensory

A

Palmar aspect lateral 3.5 fingers

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15
Q

Ulner nerve - nerve roots

A

C8-T1

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16
Q

Ulnar nerve - motor

A

Intrinsic hand muscles EXCEPT LOAF
Wrist flexion

17
Q

Ulnar nerve - sensory

A

Medial 1.5 fingers

18
Q

Ulnar nerve - mechanism of injury and features

A

Medial epicondyle fracture
Claw hand

19
Q

Long thoracic nerve - nerve roots

A

Serratus anterior

20
Q

Long thoracic nerve - sensory

A

None

21
Q

Long thoracic nerve - mechanism and features

A

During sport eg blow to ribs
Mastectomy

Winged scapula

22
Q

Erb-Duchenne palsy - features

A

Waiter’s tip - internally rotated, elbow extended

23
Q

Erb-Duchenne palsy - nerve roots

A

C5-6

24
Q

Erb-Duchenne palsy - mechanism

A

Shoulder dystocia

25
Q

Klumpke injury - nerve roots

A

C8-T1

26
Q

Klumpke injury - mechanism

A

Sudden upward jerk of hand, shoulder dystocia

Physiology MRCP (19 decks)

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