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Liver and Pancreas


Why does the liver have a hepatic portal vein and a hepatic vein?

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Suraj Kumar

Member since 19 October 2016 23 January 2018 at 10:19

Portal vein carries things away from the intestines and stomach & headed it to the liver because of which the liver receives regular blood from the artery & the intestines, which is headed from the gut to the liver for processing. These sources of blood drain from the liver in the hepatic vein. Because of this dual blood supply from artery and intestines, losing the portal vein doesn't cause the liver to die. If the portal vein thrombosis in cirrhosis, it will cause a decline in liver function and hepatic encephalopathy, leaving the liver unaffected & blocked blood flow has to find another way back to the heart. However, it can be disastrous to thrombosis the hepatic vein, because it's the one way out & can also result in severe injury.