Portal vein can refer to:
- the hepatic portal vein, a large vein that carries blood from the digestive tract to the liver and is formed by the splenic vein and superior mesenteric vein
- a vein that is part of a portal venous system and connects two systems of capillary beds
The hepatic portal vein (often portal vein for short is a Portal vein in the human body that drains blood from the Digestive system and its associated In the Circulatory system of animals a portal venous system occurs when a Capillary bed drains into another capillary bed through Veins Both capillary© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
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