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Flashcards in Musculoskeletal Deck (14)
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1
Q

What nerve passes through the carpal tunnel?

A

Median nerve

2
Q

What bones make up the carpal tunnel?

A
scaffoid
lunate
triquetrum
pisiform
hamate
capitate
trapezoid
trapezium
3
Q

What bone in the hand/wrist is most commonly fractured in a fall of an outstretched wrist?

A

the scaffoid bone

4
Q

`what bone can be palpated in the anatomical snuff box?

A

scaffoid bone

5
Q

What is carpal tunnel syndrome?

A

entrapment of the median nerve in the carpal tunnel.

nerve compression –> paresthesia, pain, and numbness in the distribution of the median nerve

6
Q

What is Guyon canal syndrome? in whom is it classically seen?

A

Compression of the ulnar nerve at the wrist or hand.

Classically seen in cyclists due to compression from handlebars

7
Q

What nerve roots make up the median nerve?

A

C5-T1

8
Q

What is the motor innervation of the median nerve?

A

thenar muscles
forearm flexors
radial (lateral) lumbricals

9
Q

What is the sensory innervation of the median nerve?

A

Radial 2/3 of the palm

volar surfaces of thumb, 2nd, and 3rd digits, and radial half of 4th

10
Q

What is the muscle and sensory innervation of the musculocutaneous nerve?

A

Innervates the arm flexors and provides sensory information to the anterolateral forearm

11
Q

What is the motor innervation of the ulnar nerve?

A
hypothenar muscles
adductor pollicis
interosseus muscles
ulnar (medial) lumbricals (4 and 5)
ulnar flexors
12
Q

What is the sensory innervation of the ulnar nerve?

A

ulnar half of the wrist and palm, 4th and 5th digits

13
Q

What is the motor innervation of the radial nerve?

A

innervates the extensors of the arm and forearm

14
Q

What is the sensory innervation of the radial nerve?

A

skin of the posterior arm and forearm

radial half of the dorsum of the hand (not including the fingertips)