Brachialis

Anterior surface of the humerus, particularly the distal half of this bone

Coronoid process and the tuberosity of the ulna

Flexion at elbow joint.

The brachialis is the strongest flexor of the elbow. Unlike the biceps, the brachialis does not insert on the radius, and therefore cannot participate in pronation/supination of the forearm.

Pronation/supination of the forearm does not affect its action.

Musculocutaneous nerve

Radial Recurrent Artery

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Occasionally doubled; additional slips to the supinator, pronator teres, biceps brachii, lacertus fibrosus, or radius are more rarely found.