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正常肝小叶结构


肝在组织学上分为无数的肝小叶。肝小叶中央是中央静脉(右上角),周围是汇管区(门管区)(左下角)。在功能上,肝脏可以从供氧的角度划分为3个区域。1区位于汇管区周围,含氧量较高,3区位于中央静脉周围,含氧量低,2区位于两者之间,含氧量一般。
Liver is divided histologically into lobules. The center of the lobule is the central vein. At the periphery of the lobule are portal triads. Functionally, the liver can be divided into three zones, based upon oxygen supply. Zone 1 encircles the portal tracts where the oxygenated blood from hepatic arteries enters. Zone 3 is located around central veins, where oxygenation is poor. Zone 2 is located in between.

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