因為有同學跟我反應第一部分"胎盤"有些地方不好懂... 所以我找了一些資料希望有助理解 =========================================================================== (wiki的資料: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. [翻譯] Cytotrophoblast在trophoblast的內層, 且在syncytiotrophoblast底下, 負責形成與母體子宮內膜間的絨毛 (由內而外是 embryo ===> cyto. ====> syncytio.) 附上一張圖: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. [翻譯] 單核的Cyto.是一種絨毛膜內的幹細胞, 可以聚集融合成多核的syncytio. 這邊在附上一張圖: http://www.endotext.org/female/female13/figures13/figure3a.gif 大概就是單層的cyto.包在胚胎外然後會向外融合形成syncytio. ========================================================================= Achoring villi: chorionic villi anchored to decidua (maternal component) 附上一張圖:http://www.usd.edu/biol/faculty/swanson/histo/pics/z.GIF 請放大後看底下的圖, 圖中achoring villi碰到了母體decidua basalis... 至於老師說"單層cytotrophoblast稱為achoring villous" 大概意思是說基本上achoring villi和syncytio.這些東西都是由cyto.這個幹細胞 去分化形成的吧 [不負責推測] ========================================================================== 所以同學如果看共筆不太了解的話可以看看講義上的定義 畢竟老師上課就是很"隨口"...好像是新範圍吧(?) 有錯請直接推文告知 謝謝^^" --

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