posterior compartment of forearm

posterior compartment of forearm

[TA]

posterior portion of the space enclosed by the antebrachial fascia, separated from the anterior compartment by the radius and ulna and by the intervening interosseous membrane; the spaces are demarcated superficially by the subcutaneous border of the ulna and the (pulse of the) radial artery; contains a supinator of the forearm, extensors of the hand at the wrist, and long extensors of the digits, all innervated by the radial nerve.

Synonym(s): compartimentum antebrachii posterius [TA], compartimentum antebrachii extensorum ☆ , extensor compartment of forearm ☆