Anterior humeral circumflex artery

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Artery: Anterior humeral circumflex artery
The scapular and circumflex arteries. (Anterior humeral circumflex visible in upper right.)
The axillary artery and its branches. (Anterior humeral circumflex labeled at center left.)
Latin a. circumflexa humeri anterior
Gray's subject #149 589
Source axillary artery   
/ Elsevier

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

The anterior humeral circumflex artery (anterior circumflex artery, anterior circumflex humeral artery), considerably smaller than the posterior, arises nearly opposite it, from the lateral side of the axillary artery.

It runs horizontally, beneath the Coracobrachialis and short head of the Biceps brachii, in front of the neck of the humerus.

On reaching the intertubercular sulcus, it gives off a branch which ascends in the sulcus to supply the head of the humerus and the shoulder-joint.

The trunk of the vessel is then continued onward beneath the long head of the Biceps brachii and the Deltoideus, and anastomoses with the posterior humeral circumflex artery.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.