Posterior circumflex humeral artery
The posterior circumflex humeral artery is an artery located in the human body, situated around the shoulder and upper chest. The artery branches off from the auxiliary artery, which supplies oxygenated blood to the armpit, upper arm, and thorax, before winding down and becoming part of the brachial artery. The artery connects to the auxiliary artery at the subscapularis, which is a muscle found at the top of the shoulder and humerus. The humeral artery is found at the back side of the top of the humeus. The artery distributes healthy blood from the heart to the upper areas of the body. The auxiliary artery brings oxygenated blood from the heart to the upper areas of the body. Once the posterior circumflex humeral artery branches off from the auxiliary artery, it distributes oxygenated blood to the shoulder-joint and deltoideus. The deltoid muscle is a large triangular shaped muscle found at the top of the shoulder-joint. The artery pumps fresh blood into the muscle, making the joint flexible and healthy.
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In Depth: Posterior circumflex humeral artery