中国大鲵肝脏的超微结构

应用透射电镜对中国大鲵的肝脏进行了超微结构研究.观察表明,大鲵肝不具肝小叶,与其他脊椎动物有所不同.肝细胞含有单个卵圆形的核;细胞质内含有粗面内质网、高尔基囊泡、线粒体、糖原颗粒和脂滴等细胞器和内含物.胆小管由两个相邻肝细胞质膜凹陷围成,而肝血窦则由内皮细胞的胞质构成.胆小管腔和窦周隙内浸润许多由肝细胞发出的微绒毛结构.还发现了枯否氏细胞和贮脂细胞.还讨论了中国大鲵肝脏的一般形态结构特点.

Ultrastructure of Liver of Chinese Giant Salamander, Andrias davidianus

The ultrustracture of the liver of the Chinese giant salamander,Andrias davidianus(Blanchard)was studied with transmission electron microscopy(TEM).The results showed that the liver had no hepatic lobule,which was different from other vertebrate.Hepatocyte contained an oval nucleus.Rough endoplasmic reticulum,Golgi complex,mitochondrium,glycogen and lipid droplets were abundant in cytoplasm of hepatocytes.The bile canaliculus was made up by two of hepatocytes.Hepatic sinusoid was formed by endothelial cells.The lumen of the bile canaliculus and the space of Disse were occluded by many microvilli extended by hepatocytes. Kupffer(s cells and fat-storing cell were also present in the tissue of liver.The general structural morphology of the liver of the Chinese giant salamander is also discussed in the paper.