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Medical Term:

posterior compartment of arm


posterior portion of the space enclosed by the brachial fascia, separated from the anterior compartment by the humerus and the lateral and medial intermuscular septa that extend from it; contains the triceps muscles that extend the forearm at the elbow joint and are innervated by the radial nerve.

Synonym(s): compartimentum brachii posteriusTA, compartimentum brachii extensorum, extensor compartment of arm

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.