once out of the gut the nutrients enter the hepatic poral system

the largest number of capillaries and blood vessels drain the digestive system


low oxygen
nutrient rich

   Hepatic portal vein
   Splenic vein
   Superior mesenteric vein
   Inferior mesenteric vein

Hepatic portal veinEdit

The hepatic portal vein is not a true vein, because it does not conduct blood directly to the heart. It is a vessel in the abdominal cavity that drains blood from the gastrointestinal tract and spleen to capillary beds in the liver.

diseases ofEdit

Portal hypertension is a condition in which the blood pressure of the portal venous system is too high. It is often the result of cirrhosis of the liver.

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