During implantation,the trophoblast divides into a superficial layer called the __________,which is composed of a multinucleate mass of cytoplasm.

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During implantation, the trophoblast divides into two layers: an outer layer called the syncytiotrophoblast, which is a multinucleate mass of cytoplasm, and an inner layer called the cytotrophoblast. The syncytiotrophoblast, which lacks distinct cell boundaries, invades the endometrium and plays a role in implantation and the formation of the placenta.

During Implantation,the Trophoblast Divides into a Superficial Layer Called the __________,Which