摘要
用电子显微镜分别对同窝大鼠出生后5、10、和15d的肝组织进行超微结构观察.结果发现,生后5d的大鼠肝脏可见幼稚型、中间型和成熟型三种肝细胞,并有造血细胞.生后10d的大鼠肝脏未见到幼稚型肝细胞及造血细胞,但在某些肝细胞内可见有髓样小体.生后15d的大鼠肝细胞内有体积较大的线粒体和成层排列的粗面内质网,其表现接近于成鼠肝细胞的形态结构,表明大鼠肝脏在生后15d逐渐进入成熟状态.提示大鼠肝细胞随其生长发育而逐渐进入成熟状态.
The liver ultrastructures of rats of the same litter were observed at the 5th, f10th, and 15th days after birth.At the 5th day,three type of hepatocytes were ound. They were the infantile, interphyletic and mature types. Hematoplasts were also found among them. At the 10th day, the above-mentioned infantile hepatocytes and hematoplasts disappeared, but residual bodies could be seen in some lives cells. At the 15th day, the bigger mitocondria and rows of rough endoplasmic reticulum approached normal hepatocytes in morphology and arrangment.The results show that the rat liver begins to mature at the 15th day after birth.
出处
《青岛医学院学报》
1990年第3期234-236,260,共3页
Acta Academiae Medicinae Qingdao Universitatis
关键词
肝脏
初生期
超微结构
大鼠
Liver
Cell differentiation
Microscopy
electron
Growth
Rats
