Posterior Forearm

Question 1

Name flexors/pronators of forearm?

Answer 1

Median nerve.
Anterior interosseous nerve.

Question 2

What are extensors/supinators of forearm?

Answer 2

Posterior interosseous nerve.
Deep branch of radial nerve.
Radial nerve.

Question 3

Flexors/pronators are located where in forearm?

Answer 3

Anterior

Question 4

Extensors/supinators are located where in forearm?

Answer 4

Posteriorly

Question 5

Origin and insertion of anconeus?

Answer 5

Origin: lateral epicondyle of humerus.
Insertion: lateral side of the olecranon, and shaft of ulna. Joint capsule of elbow.

Question 6

Anconeous innervation?

Answer 6

Radial nerve

Question 7

Spinal levels of anconeus?

Answer 7

C7/8/T1

Question 8

What is action of anconeus?

Answer 8

Assists triceps brachii and extends joint capsule of elbow during extension of elbow.

Question 9

Brachioradialis origin and insertion?

Answer 9

Origin: upper 2/3rds of lateral supracondylar ridge of humerus
Insertion: lateral aspect of styloid process of radius

Question 10

Innervation of brachioradialis?

Answer 10

Radial nerve

Question 11

Main spinal level brachioradialis?

Answer 11

C6

Question 12

Action of brachioradialis?

Answer 12

Flexes a semi prone forearm.