摘要
以扫描电镜与透射电镜观察昆明种小鼠妊娠后9.5-19天(生产)的胎鼠肝血窦内皮的形态发育。胚胎11天以前,血窦内皮是连续的,无孔。12天以后,透射电镜下内皮细胞可见两种孔,一种有隔膜,另一种无隔膜。后者是血细胞穿过内皮细胞进入血流时所形成的“暂时移动孔”修补后的残留孔隙。胎肝血窦内皮为造血微环境的成分之一。白细胞的穿壁活动不但与血细胞本身移动能力有关,也需肝细胞和血窦内皮细胞的协助。
Morphological development of the hepatic sinusoidal endothelium of 9.5-19 day(birth)gestation mouse fetuses was studied using scanning and transmitting electron microscopes(SEM and TEM).Before 11 th day,the sinusoidal endothelium is continuous and not fenestrated.After 12 th day,two kinds of fenestrae can be observed on the endothelium under TEM.Fenestrae of one kind are covered with diaphragms.Fenestrae of another kind have no diaphragms.The following problems were discussed:forming of the fenestrae,functions of the sinusoidal endothelium in hemopoiesis,and force of transmural migration of blood cells.
作者
李桂林
尹昕
朱秀雄
Li Guilin;Yin Xin;Zhu Xiuxiong(Department of Histology and Embryology,Bethune University of Medical Sciences,Changchun)
出处
《解剖学杂志》
CAS
1987年第1期10-12,93,共4页
Chinese Journal of Anatomy
