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Deltoid Branch of Thoracoacromial Artery
Cardiovascular System

Deltoid Branch of Thoracoacromial Artery

Ramus deltoideus arteriae thoracoacromialis

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Quick Facts

Origin: Thoracoacromial artery.

Course: Along pectoralis minor to the deltopectoral groove with the cephalic vein.

Branches: No named branches.

Supplied Structures: Contributes to the supply of the deltoid and pectoralis major muscles.

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The deltoid branch is one of four arteries that arises from the thoracoacromial artery. The others include the acromial, pectoral, and clavicular branches. However, the deltoid branch may also from the acromial branch of the thoracoacromial artery (Standring, 2016).


The deltoid branch travels through the pectoralis minor muscle to the cephalic vein. It travels near the deltopectoral groove towards the inferior aspect of the deltoid muscle.


No named branches.

Supplied Structures

The deltoid branch supplies the deltoid and the pectoralis major muscles. Additionally, it may contribute to the vascular supply of the proximal biceps brachii muscle (Standring, 2016).


Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Learn more about this topic from other Elsevier products


ScienceDirect image

When the artery is occluded blood is forced through the collateral vessels, drastically increasing fluid shear stress and triggering an inflammatory response which drives vessel remodeling.

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