NCIt definition : A muscle in the posterior forearm that originates from the posterior proximal shaft
of ulna and the lateral epicondyle of humerus and attaches to the proximal third of
the radius on the anterolateral and posterior surface; it functions to supinate the
forearm.;
Alternative definition : CDISC: A muscle of the forearm, in general extending from the posterior proximal shaft
of the ulna and the lateral epicondyle of the humerus to the proximal third of the
radius on the anterolateral and posterior surface; primary function is to supinate
the forearm.;