下连合器及莱斯内尔线组织结构的比较解剖学研究  

Conmparative Anatomical Study of Subcommissural Organ and Reissner's Fiber

作　　者：李文海[1] 王正东[1] 姜海波[1] 刘自力[1] 安贵林[1] 

机构地区：[1]沈阳医学院解剖学教研室,辽宁沈阳110034

出　　处：《解剖科学进展》2005年第4期347-349,共3页Progress of Anatomical Sciences

摘　　要：目的观测和比较脊椎动物和人下连合器及莱斯内尔线(Re issner’s fiber)的组织结构特征。方法以鱼类,两栖类、鸟类、哺乳类、人等的脑和脊髓及其切片用HE、M allory、Feu lgen、RAS、Van-Ge isou、Ag-NO3等方法染色后,在光、电镜下观察莱斯内尔线组织结构。结果所观察的不同种属动物的脑室和脊髓中央管内,均有莱斯内尔线;多种染色后的莱斯内尔线,显示出不同物质特有着色,表明具有韧性和弹性的莱斯内尔线主要由上皮性粘蛋白构成同时含有胶原蛋白和弹性蛋白等物质;明显可见莱斯内尔线以更纤细分支与下连合器上皮细胞相连续。结论所有脊椎动物(包括人胎儿)脑室和脊髓中央管内均有莱斯内尔线,可能是脑脊液量和质平衡变化的感受器。Objective To observe and compare the structure of subcommissural organ and Reissner＇s fibers. Methods HE, Mallory, Feulgen, PAS, Van-Geisou, and AgNOs staining methods were employed on brain and spinal cord sections from fish, amphibian, birds and mammalian samples including human. The tissue structure of Reissner ＇s fiber was observed using the light and transmission electron microscopes. Results Reissner＇s fibers were observed in the cerebral ventricle and canalis centralis medullae spinalis in all the animals we observed, and were stained by the above mentioned methods with tenacity and elasticity. Reissner＇s fibers were composed of the epithelial glycoprorein containing collagen and elastin, and were very thin and connected with the epithelial cells of the subcommissural organ. Conclusion Reissner＇s fiber was found in cerebral ventricle and canalis centralis medullae spin alis of all vertebrate animals （including human fetus）, had relationship with the quantity and composition of cerebrospinal fluid.

关 键 词：下连合器 莱斯内尔线 组织结构 解剖学 

分 类 号：R322.81[医药卫生—人体解剖和组织胚胎学]