Major Veins Of The Body Abdomen And Hepatic Portal System

Remember that the hepatic portal venous system is different from most veins in the body systemic veins which carry blood to the heart.

Major veins of the body abdomen and hepatic portal system. It is comprised of the hepatic portal vein and its branches. The main vessel of the hepatic portal system is the hepatic portal vein figures 3 31 and 3 32 a large vein that lies in the gastrohepatoduodenal ligament alongside the hepatic artery and anterior part of the bile duct the hepatic portal vein is formed by the confluence of three main vessels the gastric pancreaticomesenteric and lienomesenteric veins. The hepatic portal system refers to the veins responsible for the drainage of blood from the capillaries in the spleen stomach intestines. The hepatic portal vein is one of the most important vein that receives blood from the body and transports it into the liver for filtration and processing.

The superior mesenteric vein and the splenic vein come together to form the actual hepatic portal vein the inferior mesenteric vein connects in the majority of people on the splenic vein but in some people it is known to. These veins eventually convene at the portal vein forming a single venous inflow tract into the liver. This vein is part of the hepatic portal system that receives all of the blood draining from the abdominal digestive tract as well as from the pancreas gallbladder and spleen. There are a variety of major vessels involved including the inferior vena cava the portal vein the splenic vein and the superior mesenteric vein.

It is important for doctors to consider how the portal venous system functions when prescribing medication. This system plays a small in the body s circulation. The hepatic veins carry oxygen depleted blood from the liver to the inferior vena cava. The portal venous system otherwise known as the hepatic portal system is part of the human circulatory system.

The portal vein is usually formed by the confluence of the superior mesenteric and splenic veins and also receives blood from the inferior mesenteric left and right gastric veins and. The celiac vein drains the foregut structures including the stomach. The portal vein and its tributaries carry blood to the liver first allowing the liver to process nutrients and neutralize toxins before they pass on to the rest of the body. The veins that drain the gastrointestinal organs parallel the major arteries that supply the foregut midgut and hindgut including the celiac superior mesenteric and the inferior mesenteric arteries respectively.

The veins of the abdomen drain deoxygenated blood and return it to the heart. In this article we shall consider the anatomy of the abdominal veins their anatomical course tributaries and clinical correlations. It is a major component of the hepatic portal system one of only two portal venous systems in the body with the hypophyseal portal system being the other. Large veins that are considered part of the portal venous system are the.