deep muscles of posterior forearm

Question 1

supinator origin

Answer 1

lateral epicondyle of humerus, proximal ulna

Question 2

supinator insertion

Answer 2

proximal end of radius

Question 3

supinator action

Answer 3

supinates forearm

Question 4

supinator nerve supply

Answer 4

radial nerve

Question 5

abductor pollicis longus origin

Answer 5

posterior radius and ulna, interosseous membrain

Question 6

abductor pollicis longus insertion

Answer 6

first metecarpal

Question 7

abductor pollicis longus action

Answer 7

ABducts thumb

Question 8

abductor pollicis longus nerve supply

Answer 8

radial nerve

Question 9

extensor pollicis brevis origin

Answer 9

posterior radius + ulna, interosseous membrane

Question 10

extensor pollicis brevis insertion

Answer 10

proximal phalanx of thumb

Question 11

extensor pollicis brevis action

Answer 11

extends thumb

Question 12

extensor pollicis brevis nerve supply

Answer 12

radial nerve

Question 13

extensor pollicis longus origin

Answer 13

posterior radius + ulna, interossious membraine

Question 14

extensor pollicis longis insertion

Answer 14

distal phalanx of thumb

Question 15

extensor pollicis longus action

Answer 15

extends thumb

Question 16

extendsor pollicis longus nerve supply

Answer 16

radial nerve

Question 17

extensor indicis origin

Answer 17

posterior radius + ulna, interossious membrane

Question 18

extensor indicus insertion

Answer 18

tendon of extensor digitorum

Question 19

extensor indicus action

Answer 19

extends index finger (2nd digit)

Question 20

extensor indicus nerve supply

Answer 20

radial nerve