Medial Epicondyle

Opposite to the lateral epicondyle, the medial epicondyle is the bony outgrowth of the humerus on the medial side of the elbow (inner side of the arm).

The medial epicondyle is the skeletal anchor for the pronator teres and is the humeral attachment for the anterior and posterior bundles of the ulnar collateral ligament. It is also the origin of the muscles in the flexor-pronator mass.

The diagram to the right shows the anterior view of the right humerus with the medial epicondyle in red.