滋养层 / 滋養層

zī​yǎng​céng

trophoblast

the layer of cells on the outside of a blastocyst that provides nutrients to the embryo and later forms part of the placenta

滋养层在胚胎植入子宫的过程中起着关键作用。

created sense Mar 4, 2026, 02:25 AM