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The porta hepatis or transverse fissure of the liver is a ... This article incorporates text in the public domain from page 1191 of the 20th edition of Gray's Anatomy ...
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 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 ...
In histology (microscopic anatomy), the lobules of liver, or hepatic lobules, are small divisions of the liver defined at the microscopic scale. The hepatic lobule is a building block of the liver tissue, consisting of a portal triad, hepatocytes arranged in linear cords between a capillary network, and a central vein.
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 blood leaves the liver to the heart in the hepatic veins. The portal vein is not a true vein, because it conducts blood to capillary beds in the liver and not directly to the heart. It is a major component of the hepatic portal system, one of three portal venous systems in the human body; the others being the hypophyseal and renal portal ...
The hepatic lymph nodes consist of the following groups: (a) hepatic, on the stem of the hepatic artery , and extending upward along the common bile duct , between the two layers of the lesser omentum, as far as the porta hepatis ; the cystic gland, a member of this group, is placed near the neck of the gall-bladder;
The central area or hepatic hilum, includes the opening known as the porta hepatis which carries the common bile duct and common hepatic artery, and the opening for the portal vein. The duct, vein, and artery divide into left and right branches, and the areas of the liver supplied by these branches constitute the functional left and right lobes.