摘要
本文用光镜对Niss1染色和Golgi染色的4-10月人胎海马本部的锥体细胞和胶质细胞的发育进行了形态学研究。结果:(1)锥体细胞密度随胎龄的增大而减小,减小最明显的时间于6-7月间;(2)锥体细胞的体积随胎龄增大而增大,最明显的时间于8-9月间;(3)锥体细胞的树突可以分为顶树突和底树突两种,但前者萌出早于后者,且生长的快,并反复分支,后者为多支萌出,无分支,树突野呈扇形分布;胶质细胞密度随胎龄增大而增大,增大最明显的时间与锥体细胞密度减小的时间一致。两者呈高度负相关系(r=-0.89)。
The development of pyramidal and glia cells of hippocampus in human fetus aging from four to ten months have been studied with Nissl′s and Goilg′s methods under light microscopy. The results show that (1) the density of qyramidal cells decreases and that of glia cells increases with increase of age, being negatively related (r=-0.89). The change is most obvious at the age between six and seven months ; (2) the volume of pyramidal cells increases with increase of fetal age and the time of evident increase is between eight and nine months ; (3) the processes of pyramidal cells can. be divided into two types, apical and basal dendrites. the apical dendrtes apper earlier and grow faster than the basal dendrites. and ramify repeatedly. The basal dendrites have more branches with less repeated r ramifications and show fan-shaped dendritic fields.
出处
《解剖学杂志》
CAS
CSCD
北大核心
1992年第4期263-266,T021,共5页
Chinese Journal of Anatomy
基金
本项研究系育林省教委资助
关键词
人胎
海马
胚胎发育
human fetus, hippocampus, embyro development.
