Thoracic Veins
Thoracic vein may refer to: * Internal thoracic vein In human anatomy, the internal thoracic vein (previously known as the internal mammary vein) is the vein that drains the chest wall and breasts. Structure Bilaterally, the internal thoracic vein arises from the superior epigastric vein, and ... * Lateral thoracic vein {{disambig ...
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Internal Thoracic Vein
In human anatomy, the internal thoracic vein (previously known as the internal mammary vein) is the vein that drains the chest wall and breasts. Structure Bilaterally, the internal thoracic vein arises from the superior epigastric vein, and accompanies the internal thoracic artery along its course. It drains the intercostal veins, although the posterior drainage is often handled by the azygous veins. It terminates in the brachiocephalic vein. It has a width of 2-3 mm. There is either one or two internal thoracic veins accompanying the corresponding artery (internal thoracic artery). If internal thoracic vein is single, it usually runs medial to the artery. If there are double thoracic veins, they run on either side of the internal thoracic artery. Variations Bifurcation of each internal thoracic vein is common. The left internal thoracic vein may bifurcate between ribs 3-4 or remain as a single vein. The right internal thoracic vein may bifurcate between ribs 2-4 or re ...
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