Which will not come between cytotrophoblast and maternal blood?: (A) Decidua parietalis, (B) Syncytiotrophoblast, (C) Inter villous space, (D) Basement membrane
Answer is A. Ans: a (Decidua parietalis) Ref: Dutta, 6th ed, 31As seen clearly from the diagram, the decidua parietalis is situated away from the attatchment of the embryo and thus cannot come between the maternal blood and cytotrophoblast.