Tags: Anatomical Structure.
The medial intermuscular septum thicker than the lateral intermuscular septum extends from the lower part of the crest of the lesser tubercle of the humerus below the Teres major along the medial supracondylar ridge to the medial epicondyle; it is blended with the tendon of the Coracobrachialis and affords attachment to the Triceps brachii behind and the Brachialis in front.
