Which of the following does not form poal triad in liver
Correct Answer: Hepatic vein
Description: Ans. is 'b' i.e., Hepatic vein Histology of the Liver Liver is covered by Glisson's capsule. Liver is divided into hexagonal lobules oriented around the terminal tributaries of the hepatic vein (Terminal hepatic veins), i.e. Terminal hepatic vein is in the centre of the lobule and area around the hepatic vein is called centrilobular zone. At periphery of lobule, lies the poal tract containing hepatic aery, bile duct and poal vein. Area around poal tract is called peripoal zone. These three structures (poal vein, hapatic aery and bile duct) form poal triad. Area between peripoal zone and centrilobular zone is called midzonal area. All around the central vein are the major parenchymal cells, i.e. hepatocytes. Lobule contains sinusoid (sinusoidal capillaries) which have fenestrated endothelium covering the subendothelial space of Disse. This space contains stellate cell processes and hepatocellular microvilli. Other impoant cells of liver are Kupffer cells, which belong to monocytic-macrophage sytem and function as phagocytic cells.
Category:
Anatomy
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