Posterior Forearm/ Dorsumm Of Hand

Question 1

Extends, adducts, and abducts the wrist

Answer 1

ECRL (B), ECRB (B), ECU (D)

Question 2

Extension of four fingers

Answer 2

Extensor digitorum, extensor indicis, extensor digiti minimi

Question 3

Extension or abduction of thumb

Answer 3

EPB, EPL, APL

Question 4

Innervated by radial nerve

Answer 4

Brachioradialis, ECRL

Question 5

Innervated by deep branch of radial nerve

Answer 5

ECRB, supination, ECU, ED, EDM

Question 6

Innervated by interosseous nerve

Answer 6

APL, EPL, EPB, EI

Question 7

Muscles supplied by radial artery

Answer 7

Brachioradialis, supinator

Question 8

Muscles supplied by posterior interosseous artery

Answer 8

ECRL, ECRB, ED, EDM, ECU

Question 9

Muscles supplied by anterior interosseous artery

Answer 9

APL, EPB, EPL, EI

Question 10

Extensor retinaculum does not attach to the ulna because

Answer 10

Allows for pronation, supination

Question 11

Purpose of extensor retinaculum

Answer 11

Prevent bowstringing

Question 12

Origin of dorsal carpal arch

Answer 12

Dorsal branch of ulnar artery

Question 13

Pain is felt in tennis elbow ________

Answer 13

Laterally

Question 14

Pain is felt in golf elbow _________

Answer 14

Medially

Question 15

Finger drop is associated with ___________

Answer 15

Mallet finger