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Anterior Intercostal Branches of Internal Thoracic Artery (Left)
Cardiovascular System

Anterior Intercostal Branches of Internal Thoracic Artery (Left)

Rami intercostales anteriores arteriae thoracicae internae

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Description

There are six pairs of anterior intercostal branches that arise from the internal thoracic artery. They extend into the upper intercostal spaces, towards the posterior intercostal arteries, with which it anastomoses. The anterior intercostal branches supply structures such as the intercostal and pectoral muscles, breast, and skin. The lower intercostal spaces are supplied by branches of the musculophrenic artery.

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