Thoracoacromial artery

The thoracoacromial artery is a short artery that begins in the axillary artery. It is also frequently known by the names acromiothoracic artery and thoracic axis. The artery travels to the skin and muscles of both the upper chest and shoulder. The artery cuts through the clavipectoral fascia (also known as coracoclavicular fascia and costocoracoid membrane), which is where it then splits up into a handful of branches. The artery divides itself into four separate branch divisions serving the deltoid, pectoralis muscles, sternoclavicular joint and subclavius. The pectoral branch goes back and forth between the two pectoral muscles. The deltoid branch runs alongside the cephalic vein, which is one of the upper limb's veins. The clavicular branch serves the sternoclavicular joint. Lastly, the acromial branch provides branches to the deltoid muscles. For the most part, the origin of the thoracoacromial artery is covered by the pectoralis minor's upper side. The pectoralis minor is a triangular and slender muscle that is situated in the upper chest.

Written and medically reviewed by the Healthline Editorial Team
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In Depth: Thoracoacromial artery

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