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Inferior third of the medial border of the humerus
Medial supracondylar ridge
Left humerus. Anterior view. (Medial supracondylar ridge on side at bottom left, but not labeled.)
The inferior third of the medial border of the humerus is raised into a slight ridge, the medial supracondylar ridge (or medial supracondylar line), which becomes very prominent below; it presents an anterior lip for the origins of the Brachialis and Pronator teres, a posterior lip for the medial head of the Triceps brachii, and an intermediate ridge for the attachment of the medial intermuscular septum.
Left humerus. Anterior view. (Medial supracondylar ridge on side at bottom left, but not labeled.)
This article incorporates text in the public domain from page 211 of the 20th edition of Gray's Anatomy (1918)
