用透射电镜观察大鼠睾丸支持细胞内中间丝(IFs)的分布结果表明:IFs主要集中于细胞核周围,杂乱排列成网,并自核周区向周围胞质内广泛伸展,联系多种细胞器,并与邻近支持细胞细胞膜处桥粒样结构、外质特化结构,与邻近生精细胞细胞膜处半桥粒样结构等相联系。提示支持细胞内IFs是以核周为中心,联系胞质、胞膜多种结构的精细网络系统。 Transmission electron microscopy was used to observe the distribution of intermediate filaments (IFs) in the testicular sertoli cells of rats. The results showed that IFs mainly concentrated in the periphery of the nucleus, arranged in a disorderly manner and expanded to the surrounding cytoplasm from the perinuclear area, And is closely related to the desmosome-like structure, the specialized structure of the exosome and the hemidesmosome-like structure at the cell membrane near the supporting cell. Tip support intracellular IFs is the perinuclear as the center, contact the cytoplasm, membrane structure of a variety of fine network system.