All iLive content is medically reviewed or fact checked to ensure as much factual accuracy as possible.
We have strict sourcing guidelines and only link to reputable media sites, academic research institutions and, whenever possible, medically peer reviewed studies. Note that the numbers in parentheses ([1], [2], etc.) are clickable links to these studies.
If you feel that any of our content is inaccurate, out-of-date, or otherwise questionable, please select it and press Ctrl + Enter.
Shoulder muscle
Medical expert of the article
Last reviewed: 07.07.2025
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.
[ 1 ]
Where does it hurt?
How to examine?