Tag Archives: Azygos Vein

Medical Definition of Azygos Vein

Azygos Vein : any of a system of three veins which drain the thoracic wall and much of the abdominal wall and which form a collateral circulation when either the inferior or superior vena cava is obstructed; especially : a vein that receives blood from the right half of the thoracic and abdominal walls, ascends… Read More »