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The hepatic veins (and their variant anatomy) are relevant in liver resection and transplantation, and in Budd–Chiari syndrome. [1] Budd–Chiari syndrome is a condition caused by blockage of the hepatic veins, such as by a blood clot. It presents with a "classical triad" of abdominal pain, ascites, and liver enlargement.
In human anatomy, the hepatic portal system or portal venous system is the system of veins comprising the portal vein and its tributaries. The other portal venous system in the body is the hypophyseal portal 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.
In microanatomy, the central vein of liver (or central venule) [1] is a vein at the center of each hepatic lobule. [2] It receives the blood mixed in the liver sinusoids to drain it into hepatic veins .
The Couinaud classification of liver anatomy then further divides the liver into eight functionally independent segments. Each segment has its own vascular inflow, outflow and biliary drainage. [2] In the centre of each segment there is a branch of the portal vein, hepatic artery and bile duct.
The central vein joins to the hepatic vein to carry blood out from the liver. A distinctive component of a lobule is the portal triad, which can be found running along each of the lobule's corners. The portal triad consists of the hepatic artery, the portal vein, and the common bile duct. [25]
The right lobe is functionally separated from the left lobe by the middle hepatic vein. From a functional perspective (one that takes the arterial, portal venous, and systemic venous anatomy into account) the falciform ligament separates the medial and lateral segments of the left hepatic lobe. [6] The right lobe is of a somewhat quadrilateral ...
The human hepatic portal system delivers about three-fourths of the blood going to the liver.The final common pathway for transport of venous blood from spleen, pancreas, gallbladder and the abdominal portion of the gastrointestinal tract [2] (with the exception of the inferior part of the anal canal and sigmoid colon) is through the hepatic portal vein.