Hand

Question 1

Most easily fractured carpal bone?

Answer 1

Scaphoid

Question 2

Most frequently dislocated carpal bone

Answer 2

Lunate

Question 3

Which carpal is the insertion for flexor carpi ulnaris?

Answer 3

Pisoform

Question 4

Which carpal has a hook?

Answer 4

Hammate

Question 5

Which carpal is the keystone of carpal tunnel?

Answer 5

Capitate

Question 6

Which carpals articulate with the radius?

Answer 6

Scaphoid (and lunate) articulate

Question 7

How many phalanges are there

Answer 7

14

Question 8

Dermatomes on hand

Answer 8

C6 7 8

Question 9

What prevents the bowstringing of the forearm flexors?

Answer 9

Flexor retinaculum

Question 10

Dupuytren’s contracture

Answer 10

Constriction of palmar aponeurosis. Can’t extend finger. Need to cut through palmar aponeurosis

Question 11

Name 3 types of tendons, and 1 nerve, found int he carpal tunnel.

Answer 11

1. Flexor digitorum profundus tendons
2. Flexor digitorum superficilialis tendons
3. Flexor pollicis longus tendon
4. Median nerve

(4+4+1+1=10)

Question 12

Which of the following are FALSE about carpal tunnel syndrome?
A. Thenar muscle wasting
B. Sensation to central palm is intact
C. Most thumb movements weak
D. Thumb adduction is impaired

Answer 12

D.

Adductor policis longus m. is innervated by the ULNAR nerve!

Question 13

What two structures can be found in the canal of Guyon?

Answer 13

Ulnar a.

Ulnar n.

Question 14

T/F: The radial n. innervates intrinsic hand muscles.

Answer 14

F. Only Median n. and ulnar n. have intrinsic. Radial has intrinsic hand muscles like the 3 pollicis muscles and the indices extensor m.

Question 15

T/F: The A from 1/2LOAF is the ADductor muscle.

Answer 15

FALSE. It is the ABductor.