Posterior humeral circumflex artery

Artery: Posterior humeral circumflex artery
The axillary artery and its branches, including posterior humeral circumflex.
The scapular and circumflex arteries. (Posterior hum. circumflex labeled at center right.)
Latin arteria circumflexa humeri posterior
Gray's subject #149 589
Source axillary artery   

The posterior humeral circumflex artery (posterior circumflex artery, posterior circumflex humeral artery) arises from the axillary artery at the lower border of the subscapularis, and runs posteriorally with the axillary nerve through the quadrangular space.

It winds around the neck of the humerus and is distributed to the Deltoid muscle (aka deltoideus) and shoulder-joint, anastomosing with the anterior humeral circumflex and profunda brachii.

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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 As such, some of the information contained within it may be outdated.