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From there, blood makes its way to the Vena cava, the largest vein in the body to return to the heart. Portal hypertension describes elevated pressure within the portal system, including the portal vein and the tributary veins that drain into it.
This condition, called portal hypertension, is a major complication of cirrhosis worldwide. In human anatomy, the hepatic veins are the blood vessels that drain de-oxygenated blood from the liver and blood cleaned by the liver (from the stomach, pancreas, small intestine and colon) into the inferior vena cava.They arise from the substance of the liver, more specifically the central vein of the liver lobule.est Answer: The hepatic portal vein (often simply portal vein) is a vein in the abdominal cavity that drains blood from the gastrointestinal tract and spleen.