胎肝组织电镜观察,首次发现大量红母细胞完全被封入于肝细胞胞浆内。二者膜各自连续,其间仅留狭缝,无细胞连接;附近甚少饮液泡。紧靠红母细胞的肝细胞膜形成大量内褶,并与致密物相混形成羽毛状,提示肝细胞孵育红母细胞。此外被封入的红母细胞有提早脱核现象,且继续被孵育。 Observed by electron microscopy of fetal liver tissue, it was first discovered that a large number of red mother cells were completely enclosed in the cytoplasm of hepatocytes. Both membranes are continuous, leaving only slits between them and no cell connections; very little liquid vacuoles are nearby. The hepatocyte membrane immediately adjacent to the red mother cells forms a large number of inward pleats and mixes with the dense material to form feathers, suggesting that the hepatocytes incubate the red mother cells. In addition, the encapsulated red mother cells have an early denucleation phenomenon and continue to be incubated.