They can be segregated into the lower group and the upper group veins.The lower group veins originate from the lower parts of the right or caudate lobe. For more details, see our The liver is a vital organ possessed by vertebrates as well as some other animals. They deliver deoxygenated blood from the liver and other lower digestive organs like the colon, small intestine, stomach, and pancreas, back to the heart; this is done via the IVC. The hepatic veins carry oxygen-depleted blood from the liver to the inferior vena cava. The remaining patients had the RHV, MHV, and LHV draining independently into the inferior vena cava (IVC). Mark Gurarie is a freelance writer, editor, and adjunct lecturer of writing composition at George Washington University. Ⓒ 2020 About, Inc. (Dotdash) — All rights reservedKeri Peterson, MD, is board-certified in internal medicine and has her own private practice on the Upper East Side of Manhattan.

The anatomy of the liver can be described using two different aspects: morphological anatomy and functional anatomy. A proper right hepatic vein draining blood from more than one lobe was never observed. They also transport blood that has been drained from the … The prevailing pattern of the three hepatic veins in these subjects was a right hepatic vein (RHV) and a common trunk for the middle (MHV) and left (LHV) hepatic veins (122/200, 61%).
The right hepatic vein, which is larger than the left and middle hepatic veins, has a short extrahepatic course of approximately 1 to 2 cm.

The hepatic artery carries blood from the aorta, while the portal vein carries blood, which contains nutrients from digestion, from all over the gastrointestinal tract, and also from the spleen and pancreas. The portal vein is responsible for carrying blood from the GI tract, gallbladder, pancreas, and spleen to the liver. Our website services, content, and products are for informational purposes only. There are usually three upper hepatic veins draining from the left, middle, and right parts of the liver.

The portal vein or hepatic portal vein (Latin: vena portae hepatis) is located in the upper right quadrant of the abdomen. They are smaller in size than the upper group veins and vary in number from person to person.

The middle hepatic vein is the longest. Anatomy Structure & Location . From here, the blood is delivered back to the heart, where the re-oxygenation process of the blood takes place. Detailed knowledge of the vascular anatomy is important for improving surgical approaches to the liver.
Our website services, content, and products are for informational purposes only. Two sub-lobes with different portal blood supply and venous drainage could be identified in the right lateral (33.3% of cases) and the left lateral (100% of cases) lobes. The central veins connect to the hepatic veins, which leave the liver. These are larger than the group of lower hepatic veins that can number from six to twenty. In that respect, the liver performs the role of a filtering organ for blood that is on its way back to the heart. These include: Liver – Anatomy of Hepatic Portal System Overview. Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Liver – Anatomy of Hepatic Portal System and lobes Tutorial – pdf bodydef August 08, 2020. These veins vary in size between 6 and 15 millimeters (mm) in diameter, and they’re named after the corresponding part of the liver that they cover. 2004 Apr;84(2):413-35, viii. In the lower surface of the liver, there are the gates through which the portal vein and the hepatic artery enter, and the bile duct exits. In that respect, the liver performs the role of a filtering organ for blood that is on its way back to the heart.

Clots of the hepatic veins lead to a rare disorder called Budd-Chiari syndrome.

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