豚鼠海马CAI区锥体细胞间的缝隙连接——超薄切片和冷冻复型的电镜观察

ELECTRON MICROSCOPIC OBSERVATION OF THE GAP JUNCTION ON CA1 PYRAMIDAL CELLS OF GUINEA PIG HIPPOCAMPUS

本实验用超薄切片和冷冻复型电镜技术,研究了豚鼠海马CAI区锥体细胞间的缝隙连接(GJ)。在冷冻复型样品中见到,海马CAI区锥体细胞劈裂面EF上有清楚的GJ存在,另外在锥体细胞顶树突EF面上,也见到GJ。上述GJ的膜内微粒聚集成区,微粒的大小和数目不一,有的区内排列成行,较整齐;有的区内排列不整齐或较分散。

This article presents a brief introduction of the gap junctions on CA_(I)pyramidal cells of guinea pig hippocampus observed by freeze replica technique.In freeze replicas of the hippocampus of guinea pig,gap junctions were observed on the E-face of the CA_(I)pyramidal cells and the apical dendrites,the intramembranous particles aggregated as a large or a small area and arranged regularly or irregularly.