中国水蛇雌性生殖系统的血液循环  

The Blood Circulation of Reproductive System in Female Enhydris chinensis

作　　者：何海晏[1] 

机构地区：[1]广州大学生物学系,广州510405

出　　处：《动物学杂志》2002年第2期21-26,共6页Chinese Journal of Zoology

摘　　要：取 1 2条处于不同生殖期的雌性中国水蛇作血管单注射 ,观察其生殖系统血液循环特点。结果表明 ,卵巢处于静止期的个体的生殖系统循环模式与雄体相似 ;卵子处于迅速生长期 ,卵巢血管变得十分发达 ,布满于正在生长的卵子表面 ;卵子处于成熟期 ,卵巢血管又回复到模式状态 ;受精卵落入子宫中发育时 ,子宫血管变得十分发达 ,子宫壁及卵黄膜均十分薄 ,子宫腔中有液体浸润胚胎。提示了胚胎与母体之间可能通过这些液体进行某些物质交换。The blood circulation of reproductive system in 12 individuals of female Enhydris chinensis at various reproductive periods was examined by injecting colored Ladex into the blood vessels. The blood circulation pattern at non-generative period was similar to that of the male; the vessels of ovaries in the individuals at egg growth period expanded obviously and extended to the surfaces of growing eggs; and the vessels returned to the state of non-generative period in the individuals at egg maturation phase. The vessels of uterus expanded obviously and the walls of uterus and vitelline membrane were very thin, and the embryos were bathed by liquid in uterus cavity when fertilized eggs were developing in the uterus. It is suggested that material exchange between embryos and this maternal liquid may occur.

关 键 词：水蛇 雌性生殖系统 血液循环 爬行纲 蛇目 比较解剖 

分 类 号：Q959.6[生物学—动物学]