Study note

Anterior circumflex humeral artery

THE CONTEXT

This small axillary artery branch contributes to an arterial circle around the surgical neck of the humerus.

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The anterior circumflex humeral artery arises from the third part of the axillary artery at the lower border of subscapularis.

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It passes laterally in front of the intertubercular sulcus of the humerus.

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It anastomoses with the posterior circumflex humeral artery to form an arterial circle around the surgical neck of the humerus.

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Its ascending branch runs in the intertubercular sulcus and supplies the head of the humerus and shoulder joint.

NEETx

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