Internal thoracic vein

In human anatomy, the internal thoracic vein (previously known as the internal mammary vein) is a vessel that drains the chest wall and breasts.

Internal thoracic vein
Veins of the thorax and abdomen. The internal thoracic veins drain into the brachiocephalic veins.]
Posterior surface of sternum and costal cartilages, showing Transversus thoracis. (Internal mammary vessels labeled at center top.)
Drains fromsuperior epigastric vein
Drains tobrachiocephalic vein
Arteryinternal thoracic artery
Latinvena thoracica interna
Anatomical terminology

Bilaterally, it arises from the superior epigastric vein, accompanies the internal thoracic artery along its course and terminates in the brachiocephalic vein.

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