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hepatic portal vein

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hepatic portal vein
n.

hepatic portal vein,
a large vein through which all venous blood from the gastrointestinal system enters the inferior surface of the liver. The vein then ramifies like an artery to distribute blood to small endothelial-lined hepatic sinusoids, which form the vascular exchange network of the liver.


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The liver continues to receive some blood from the hepatic portal vein, which carries blood from the stomach and intestine.
Portal venography demonstrated patency of the hepatic and portal veins and esophageal varices; pressure measurements revealed a mildly elevated hepatic vein pressure of 20 mm and markedly increased hepatic portal vein pressure gradient of more than 40 mm (reference range, [is less than] 12 mm).
 
 
 
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