因为有同学跟我反应第一部分"胎盘"有些地方不好懂... 所以我找了一些资料希望有助理解 =========================================================================== (wiki的资料:cytotrophoblast) The cytotrophoblast (or layer of Langhans) is the inner layer of the trophoblast, interior to the syncytiotrophoblast in an embryo. It serves to anchor the embryonic chorion to the maternal endometrium. [翻译] Cytotrophoblast在trophoblast的内层, 且在syncytiotrophoblast底下, 负责形成与母体子宫内膜间的绒毛 (由内而外是 embryo ===> cyto. ====> syncytio.) 附上一张图:http://en.wikipedia.org/wiki/Image:Gray37.png Cytotrophoblasts are stem cells in the chorionic villi. During differentiation, mononuclear cytotrophoblast fuse together into the multinucleated syncytiotrophoblasts. [翻译] 单核的Cyto.是一种绒毛膜内的干细胞, 可以聚集融合成多核的syncytio. 这边在附上一张图: http://www.endotext.org/female/female13/figures13/figure3a.gif 大概就是单层的cyto.包在胚胎外然後会向外融合形成syncytio. ========================================================================= Achoring villi: chorionic villi anchored to decidua (maternal component) 附上一张图:http://www.usd.edu/biol/faculty/swanson/histo/pics/z.GIF 请放大後看底下的图, 图中achoring villi碰到了母体decidua basalis... 至於老师说"单层cytotrophoblast称为achoring villous" 大概意思是说基本上achoring villi和syncytio.这些东西都是由cyto.这个干细胞 去分化形成的吧 [不负责推测] ========================================================================== 所以同学如果看共笔不太了解的话可以看看讲义上的定义 毕竟老师上课就是很"随口"...好像是新范围吧(?) 有错请直接推文告知 谢谢^^" --

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