Tags: Anatomical Structure.
The lateral intermuscular septum extends from the lower part of the crest of the greater tubercle of the humerus along the lateral supracondylar ridge to the lateral epicondyle; it is blended with the tendon of the Deltoideus gives attachment to the Triceps brachii behind to the Brachialis Brachioradialis and Extensor carpi radialis longus in front and is perforated by the radial nerve and profunda branch of the brachial artery.
