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。 In this study, ultrathin sections and cryogenic multiplex electron microscopy were used to study the gap junctions (GJs) between pyramidal cells in hippocampal CAI of guinea pigs. In the frozen complex samples seen in the hippocampal CAI pyramidal cleavage surface EF there is a clear presence of GJ, in addition to pyramidal cell dendrites EF surface, also see GJ. The GJ membrane particles gathered into the area, the size and number of particles vary, and some areas arranged in rows, more neat; some areas arranged irregularly or more dispersed.