part of part of connecting branch of vessel supplies blood to system axillary artery shoulder glenohumeral joint deltoid coracobrachialis muscle biceps brachii artery upper arm skin proximal head of humerus anterior humeral circumflex artery An artery that branches from the axilliary artery and supplies the deltoid, biceps brachii, and coracobrachialis muscles, the glenohumeral joint, the proximal humeral head, and the skin overlying the anterior aspect of the proximal humerus. This artery courses laterally across the anterior surface of the humerus and anastomoses with the posterior humeral circumflex artery. FMA:22680 2024-08-20T09:53:48Z Aleix Puig-Barbé