Intermediate trophoblast
Intermediate trophoblast is a distinct subtype of trophoblastic tissue that arises from the cytotrophoblast. It is sub-categorized by location: Villous intermediate trophoblast: at anchoring villi of trophoblastic column Implantation site intermediate trophoblast: at implantation site (or basal plate), differentiated from villous intermediate trophoblast Chorionic-type intermediate trophoblast at chorionic laeve of fetal membrane, differentiated from villous intermediate trophoblast == Function == The function of the implantation site intermediate trophoblast is to anchor the placenta to the maternal tissue.