Question

What are the origins and insertions of the extensor carpi ulnaris muscle?

Answer 1

The extensor carpi ulnaris muscle originates on the lateral epicondyle of the humerus and the posterior border of the ulna. It inserts onto the base of the 5th metacarpal bone of the hand. It is responsible for extending and adducting the hand at the wrist.

Step-by-step explanation:

The extensor carpi ulnaris muscle originates on the lateral epicondyle of the humerus and the posterior border of the ulna. It inserts onto the base of the 5th metacarpal bone of the hand. This muscle is responsible for extending and adducting the hand at the wrist.