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Your portal vein carries blood from organs in your abdomen (belly) to your liver. This blood must pass through your liver for filtering and processing before it returns to your body’s general circulation. So, your portal vein plays a vital role in draining many smaller veins (tributaries) in your belly and sending the blood into your liver.
It is responsible for directing blood from the region of the gastrointestinal tract between the esophagus and rectum and also includes venous drainage from the supplementary organs such as the spleen and pancreas.
‘Hepatic’ means of or relating to the liver, therefore the hepatic portal vein is a blood vessel that sends nutrient-rich blood from the gastrointestinal tract and spleen to the liver, but also delivers toxins to the liver that will be chemically modified in the proces of detoxication.
In the circulatory system of vertebrates, a portal venous system occurs when a capillary bed pools into another capillary bed through veins, without first going through the heart. Both capillary beds and the blood vessels that connect them are considered part of the portal venous system.
The portal vein or hepatic portal vein (HPV) 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.
The portal vein forms from the confluence of the superior and inferior mesenteric veins, the splenic vein, gastric vein, and cystic vein. The portal vein enters the liver within the hepatoduodenal ligament, traveling posterior to the proper hepatic artery and the common bile duct.
The portal vein (PV) is the main vessel of the portal venous system (PVS), which drains the blood from the gastrointestinal tract, gallbladder, pancreas, and spleen to the liver. There are several variants affecting the PV, and quite a number of congenital and acquired pathologies.
The portal vein is a blood vessel that carries blood from abdominal organs to the liver. It is the main vessel of the hepatic portal system.
The portal venous system is responsible for directing blood from parts of the gastrointestinal tract to the liver. Substances absorbed in the small intestine travel first to the liver for processing before continuing to the heart.
Circulation. The liver receives a dual blood supply from the hepatic artery and portal vein. The hepatic artery is a branch of the coeliac trunk and provides 30% of blood to the liver. The portal vein, formed by the mesenteric and splenic veins, supplies 70% of the blood to the liver.