The brachialis is the deepest muscle of the three muscles within the anterior compartment of the arm. The other muscles are the biceps brachii and the coracobrachialis.
Origin | Anterior surface of the distal half of the humerus |
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Insertion | Tuberosity and coronoid process of the ulna |
Innervation | Musculocutaneous nerve (C5-C6) and radial nerve (C7) |
Blood Supply | Brachial artery |
Action | Flexion of the forearm at the elbow joint. |