Posterior forearm muscles

Question 1

What does brachioradialis do?

Answer 1

Flexion, mostly in midpronation

Question 2

What do extensor carpi radialis longus & brevus do?

Answer 2

Extend wrist
Abduct wrist
Extend CMC

Question 3

What does extensor digitorum do?

Answer 3

Extend wrist
Extend CMC
Extend finger MCP & IP

Question 4

What does extensor digiti minimi do?

Answer 4

Extend wrist
Extend CMCs
Extend pinky MCP & IP

Question 5

What does extensor carpi ulnaris do?

Answer 5

Extend wrist
Extend CMCs
Adduct wrist
Adduct CMCs

Question 6

What does supinator do?

Answer 6

Supinate forearm
Rotate radius anterior/superior when elbow is flexed

Question 7

What does abductor pollicis longus do?

Answer 7

Extend wrist
Extend CMCs
Abducts thumbs
Extend thumb at CMC

Question 8

What does extensor pollicis longus do?

Answer 8

Extend wrist
Extend CMCs
Extend MCP & CMCs
Extend thumb at IP

Question 9

What does extensor pollicis brevus do?

Answer 9

Extend wrist
Extend CMCs
Extend thumb at MCPs

Question 10

What does extensor indicis do?

Answer 10

Extend wrist
Extend CMCs
Extend second finger