蜗窗膜是中耳和内耳的屏障,具有维持耳蜗生理的功能。它在许多耳科疾病如中耳炎、耳硬化症、耳外伤、肿瘤、先天性发育不全、突发性聋和中耳局部用药等方面都很重要。作者报道对人耳蜗窗膜的电镜所见。它分三层,与鼓膜相似,四周较厚,外层面向鼓膜,为两层鳞状细胞组成,内有亮细胞和暗细胞,前者有胞浆突起伸向邻近的暗细胞。两种细胞都有稠密的胞浆,其表面有无数的微绒毛。胞核的长轴与胞膜平行排列。细胞中偶见糖原。细胞间的连接装置有结合小带、 The snail window membrane is a barrier to the middle ear and inner ear and has the function of maintaining cochlear physiology. It is important in many otological diseases such as otitis media, otosclerosis, ear trauma, cancer, congenital hypoplasia, sudden deafness, and topical middle ear medications. The authors report on the electron microscopy of the human ear window membrane. It is divided into three layers, similar to the tympanic membrane, thick around the outer tympanic membrane for the two layers of squamous cells, there are bright cells and dark cells, the former protruding cytoplasm adjacent dark cells. Both cells have dense cytoplasm with numerous microvilli on their surface. The long axis of the nucleus and the cell membrane are arranged in parallel. Occasional glycogen cells. Intercellular connection device has a combination of small band,