Portal Vein

The hepatic portal vein (often simply portal vein) is a vein in the abdominal cavity that drains blood from the gastrointestinal tract and spleen. It is usually formed by the confluence of the superior mesenteric and splenic veins, and also receives blood from the inferior mesenteric, gastric, and cystic veins. The hepatic portal vein is a major component of the hepatic portal system, one of the main portal venous systems in the body.








The portal vein and its tributaries. It is formed by the superior mesenteric vein and splenic vein. Leinal vein is an old term for splenic vein.