【摘要】 利用荧光组织化学和组织学染色连续在同一切片上显示的方法,观察了5只大鼠整个心脏和7只大鼠心房的连续切片。大鼠心脏的小强荧光细胞为圆形、卵圆形和不规则形。它们在心脏主要呈密集成团、簇状或素条状细胞群,以及散在存在的细胞。成年大鼠心脏小强荧光细胞的数量为442～664个,其中86～92％位于心房外膜,而且主要位于心房背侧几个区域。心内膜未发现小强荧光细胞;其他部位这种细胞很少。小强荧光细胞和心壁的神经节分布区域相类似。但是有的神经节并没有小强荧光细胞。部分小强荧光细胞邻近心壁的小血管。这种细胞和传导系统没有明显的形态学接触。更多还原

【Abstract】 Serial cryostat sections of five hearts and seven atria of rats were prepared. Falck’s fluorescent histochemical method, and histological staining methods wereutilized in succession on the same section. Small intensely fluorescent cells in rat’s heart are round, oval or polyhedral in shape. A few of them possess processes. These cells are found in the heart in four major forms: dense spheroid groups, loosely associated clusters, linear alignment, and isolated cells.The number of small intensely fluorescent cell varies between 442-664 cells in the adult rat’s heart. 86-92% of them are localized in subepicardium of atrium, especially several areas on the dorsum of atrium. No small intensely fluorescent cell was found in endocardium. The rest of these cells are scattered in other parts of the heart. The distribution areas of atrial nerve ganglia and small intensely fluorescent cells in subepicardium are similar. There are no such cells in some atrial ganglia and there is no relation between the number of these cells in the ganglion and its size. Parts of these cells are often found near the blood vessels. Small intensely fluorescent cells are not morphologically associated with the conduction system in the rat.更多还原