Brachialis muscle
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The brachialis muscle (brachialis) is one of the three muscles of the anterior compartment of the arm. It is only involved in flexion at the elbow and therefore the strongest flexor at the elbow, c.f. biceps brachii which is also involved in supination because of its insertion on the radius.
- origin: lower portion of the medial surface of the humerus
- insertion: ulna tuberosity and coronoid process of the ulna
- innervation: musculocutaneous nerve and radial nerve (proprioceptive branch)
- action: flexion at the elbow
-<strong>innervation</strong>: <a href="/articles/musculocutaneous-nerve">musculocutaneous nerve</a> and <a href="/articles/radial-nerve">radial nerve</a> (proprioceptive branch)</li>- +<strong>innervation</strong>: <a title="Musculocutaneous nerve" href="/articles/musculocutaneousnerve">musculocutaneous nerve</a> and <a href="/articles/radial-nerve">radial nerve</a> (proprioceptive branch)</li>
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