UE neurology

Question 1

radial nerve and median nerve both do the same function to the thumb. What is it?

Answer 1

abduct

Question 2

what do the dorsal/palmar interossei do and the lumbricals?

Answer 2

flex metacarpophalangeal jt, extend PIP and DIP

Question 3

Ape’s hand is what? what nerve?

Answer 3

median nerve (problem at wrist)
- can't abduct thumb

Question 4

Benedict’s hand is what? what nerve?

Answer 4

median nerve (problem at elbow)
- can't flex 2nd and 3rd finger

Question 5

wrist drop is what? what nerve?

Answer 5

radial nerve

- extensors don’t work

Question 6

claw hand is what? what nerve?

Answer 6

ulnar nerve

- extension of MCP jt of 4th and 5th digits, flexion of PIP jts there

Question 7

flexor pollicis longus m is innervated by what nerve?

Answer 7

anterior interosseous nerve

Question 8

flexor pollicis brevis is innervated by what?

Answer 8

ulnar nerve (medial side) and median nerve (lateral side)

Question 9

radial nerve innervates what skin?

Answer 9

posterior arm, inferior lateral arm, posterior forearm

Question 10

median nerve innervates what skin?

Answer 10

palm (palmar cutaneous branch median nerve)

Question 11

ulnar nerve innervates what skin?

Answer 11

dorsal arm, palm (dorsal cutaneous branch ulnar nerve, palmar cutaneous branch ulnar nerve)

Question 12

what nerve supinates arm?

Answer 12

deep radial

Question 13

what two muscles does deep radial nerve go to?

Answer 13

extensor carpi radialis brevis and supinator muscle

Question 14

what are the last two muscles that the radial nerve goes to?

Answer 14

brachioradialis, extensor carpi radialis longus

Question 15

flexor carpi ulnaris and extensor carpi ulnaris share one same function, which is?

Answer 15

adduct wrist

Question 16

flexor carpi radialis and extensor carpi radialis brevis/longus share what same function?

Answer 16

abduct wrist

Question 17

deep extensors?

Answer 17

supinator m., extensor indicis m