Anterior circumflex humeral artery

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The anterior circumflex humeral artery is a branch of the axillary artery.

Anterior circumflex humeral artery

System: Arterial
Function:
Origin: Axillary artery
Branches: Ascending branch
Insertion:
Arterial supply: To head of humerus, shoulder,
Venous drainage:
Lymphatic drainage:
Innervation:
Vertebral levels:
Search for Anterior circumflex humeral artery in Gray's.


Contents

Anatomical Course

The artery and the posterior circumflex humeral artery most often arise as a common trunk from the lateral side of the third part of the axillary artery at the level of the distal border of subscapularis. They soon divide, the anterior artery running horizontally deep the coracobrachialis and the short head of biceps brachii and anterior to the surgical neck of humerus. At the intertubercular sulcus it gives off an ascending branch whilst continuing laterally beneath deltoid and the long head of biceps to end by anastamosis with the posterior circumflex humeral artery.

Branches

Ascending branch - runs upwards to supply the head of humerus and the shoulder

Relations

Anastamoses

Arterial Supply to

Variations

70% arise on a common stem with the posterior artery; 30% arise independently.

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