肝细胞是肝脏最基本单位,它对机体内蛋白质、脂肪、糖元、酶及激素合成,各种营养物质的输送和利用都有很重要作用,近年来由于电子显微镜的发明和应用,才开始直接揭示出肝细胞的超微结构,并对其机能也做了广泛深入研究,现仅就肝细胞膜、细胞质、细胞核等的超微结构及其功能阐述如下。一、肝细胞膜肝细胞膜厚度约80～100埃,在高分辨的电子显微镜下观察显示有三层结构,内外两侧电子密度高,因此色深,中间层电子密度低故色浅,肝细胞膜的主要成分 Liver cells are the most basic unit of the liver, which plays an important role in the body’s protein, fat, glycogen, enzymes and hormone synthesis, the delivery and utilization of various nutrients. In recent years, due to the invention and application of electron microscope Directly reveals the ultrastructure of liver cells, and its function has also been extensively studied, now only the liver cell membrane, cytoplasm, nucleus and other ultrastructures and their functions are described below. First, the liver cell membrane Hepatocyte membrane thickness of about 80 ~ 100 angstroms, the high resolution electron microscopy showed that there are three layers of structure, both inside and outside the electron density is high, so the color depth, the middle layer of low electron density, light color, the main liver membrane ingredient