Anatomy: Upper Limb 3

Question 1

Muscles in the front of the forearm are what for the wrist ?

Answer 1

Flexors of the wrist

Question 2

What are the 4 muscles in the superficial group of the anterior forearm ?

Answer 2

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

Question 3

What nerve innervates the pronator teres ?

Answer 3

Median nerve

Question 4

Which superficial muscle is involved in adduction of the wrist joint ?

Answer 4

Extensor carpi ulnaris

Question 5

Which superficial muscle is involved in abduction of the wrist joint ?

Answer 5

Flexor carpi radialis

Question 6

What is the main action of the brachioradialis muscle ?

Answer 6

Elbow flexion

Question 7

Which nerve innervates the brachioradialis muscle ?

Answer 7

Radial nerve

Question 8

To which digits does the Flexor Gigitorum Superficialis (FDS) tendons attach ?

Answer 8

Ring, middle, index and little

Question 9

Does the FDS act on the most distal phalynx ?

Answer 9

No

Question 10

Which nerve innervates the FDS ?

Answer 10

Median nerve

Question 11

What is the main action of the FDP on the wrist and the fingers?

Answer 11

Flexion - even the distal interphaalangeal joint

Question 12

Which part of the FDP is supplied by the unlar nerve ?

Answer 12

Medial half (ring and little finger)

Question 13

Which part of the FDP is supplied by the radial nerve ?

Answer 13

Lateral half (index and middle finger)

Question 14

Does the FDP lie deep or superficial to the FDS ?

Answer 14

Deep

Question 15

Which muscle is the long flexor of the thumb ?

Answer 15

Flexor Pollicus longus

Question 16

Which nerve innervates the long flexor of the thumb ?

Answer 16

Median nerve

Question 17

What is the action and the innervation of the pronator quadratus ?

Answer 17

Pronation

Median nerve