<P> The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract , gallbladder , pancreas and spleen to the liver . This blood contains nutrients and toxins extracted from digested contents . Approximately 75 % of total liver blood flow is through the portal vein , with the remainder coming from the hepatic artery proper . The blood leaves the liver to the heart in the hepatic veins . </P>
<P> The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract , gallbladder , pancreas and spleen to the liver . This blood contains nutrients and toxins extracted from digested contents . Approximately 75 % of total liver blood flow is through the portal vein , with the remainder coming from the hepatic artery proper . The blood leaves the liver to the heart in the hepatic veins . </P>
where does the blood in the hepatic portal vein come from
where does the blood in the hepatic portal vein come from
gastrointestinal tract gallbladder pancreas spleen
gastrointestinal tract gallbladder pancreas spleen