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Shoulder muscle
Last reviewed: 07.07.2025
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The brachialis muscle (m.brachialis) originates on the lower two-thirds of the body of the humerus between the deltoid tuberosity and the joint capsule of the elbow joint, on the medial and lateral intermuscular septa of the shoulder. It is attached to the tuberosity of the ulna. Bundles of the deep part of the tendon of this muscle are woven into the capsule of the elbow joint.
Function of the brachialis muscle: flexes the forearm at the elbow joint.
Innervation of the brachial muscle: musculocutaneous nerve (CV-CVIII).
Blood supply of the brachial muscle: brachial artery, superior and inferior collateral ulnar arteries, recurrent radial artery.
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