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用特殊染色法对大鼠睾丸进行了光镜观察.曲细精管自Ⅰ期起,精子细胞的胞质内开始有大量微细的染色颗粒出现,并逐渐变得粗大.至Ⅷ期精子排放时,精子遗弃在上皮的全部为颗粒物质,这些颗粒于精子排放后立即向基部转移并贴近基膜.颗粒在向外移行及至全部消失的过程中,无大小及染色性质的变化.作者认为,这些染色颗粒就是实际上的残余体,属不可消化物质,它是在精子变态过程中由精子细胞消化自身胞质成分而逐渐形成的,最终由支持细胞吞噬.支持细胞可能并不参与残余体物质的消化过程.
Specimens of spermatozoa were observed under light microscope with special staining method.Microscopic spermatogenesis began with a large number of fine stained particles in the cytoplasm of spermatozoa since the first phase and gradually became coarse.When spermatozoa were discharged , All of the sperm that are left in the epithelium are particulate matter that migrates to the base and sits close to the basement membrane immediately after the sperm are released.The size and the nature of the staining changes in the outward and to the completely disappearance of the particles.The authors believe that these Dyeing particles are the actual residues, which are indigestible substances, which are gradually formed by the sperm cells digesting their own cytoplasmic components in the process of sperm metamorphosis and are eventually phagocytosed by supporting cells that may not participate in the remnants of the residual substance Digestion process.