Posterior Muscles of Forearm

Question 1

extensor carpi radialis longus - action

Answer 1

extend wrist & abducts hand

Question 2

extensor carpi radialis longus - innervation

Answer 2

radial nerve

Question 3

extensor carpi radialis brevis - action

Answer 3

extend wrist & abduct hand

Question 4

extensor carpi radialis brevis - innervation

Answer 4

radial nerve

Question 5

extensor digitorum - action

Answer 5

extend wrist, 2nd-5th MP, PIP, and DIP joints

Question 6

extensor digitorum - origin

Answer 6

lateral epicondyle of humerus

Question 7

extensor carpi radialis brevis - origin

Answer 7

lateral epicondyle of humerus

Question 8

extensor digitorum - innervation

Answer 8

radial nerve

Question 9

extensor digiti minimi - action

Answer 9

extend wrist, MP, and PIP of 5th finger

Question 10

extensor digiti minimi - origin

Answer 10

lateral epicondyle of humerus

Question 11

extensor digit minimi - innervation

Answer 11

radial nerve

Question 12

extensor carpi ulnaris - action

Answer 12

extends wrist & adducts hand

Question 13

extensor carpi ulnaris - origin

Answer 13

lateral epicondyle of humerus

Question 14

extensor carpi ulnaris - innervation

Answer 14

radial nerve

Question 15

abductor pollicis longus - action

Answer 15

abducts thumb

Question 16

abductor pollicus longus - innervation

Answer 16

radial nerve

Question 17

extensor pollicus brevis - action

Answer 17

extend MP joint to thumb

Question 18

extensor pollicus brevis - innervation

Answer 18

radial nerve

Question 19

extensor pollicis longus - action

Answer 19

extends MP & IP joints of thumb

Question 20

extensor pollicis longus - innervation

Answer 20

radial nerve

Question 21

extensor indicis - action

Answer 21

extend MP, PIP & DIP of finger 2

Question 22

extensor indicis - innervation

Answer 22

radial nerve

Question 23

supinator - action

Answer 23

supinates forearm

Question 24

supinator - innervation

Answer 24

radial nerve