Extensors of forearm

Question 1

Extensor carpi radialis longus O?

Answer 1

Lateral supracondylar ridge of humerus.

Question 2

Extensor carpi radialis longus I?

Answer 2

Base of 2nd metacarpal

Question 3

Extensor carpi radialis brevis O?

Answer 3

Lateral epicondyle of humerus: common extensor tendon

Question 4

Extensor carpi radialis brevis I?

Answer 4

Base of 3rd metacarpal

Question 5

Extensor carpi radialis longus and brevis A?

Answer 5

Extend wrist. Radial deviation.

Question 6

Extensor carpi ulnaris O?

Answer 6

Common extensor tendon on lateral epicondyle of humerus.

Question 7

Extensor carpi ulnaris I?

Answer 7

Base of 5th metacarpal.

Question 8

Extensor carpi ulnaris A?

Answer 8

Extend wrist. Ulnar deviation.

Question 9

Extensor digitorum O?

Answer 9

Common extensor tendon from lateral epicondyle of humerus.

Question 10

Extensor digitorum I?

Answer 10

Bases of middle and distal phalanges of 2nd-5th fingers.

Question 11

Extensor digitorum A?

Answer 11

Extend 2nd-5th fingers, assist to extend wrist.

Question 12

Anconeus location and A?

Answer 12

Beside common extensor tendon. Extend the elbow.