Which layer of placenta disappears at the end of pregnancy?: (A) Decidua perietalis, (B) Decidua capsularis, (C) Decidua basalis, (D) Chorion frondosum
Answer is C. Decidua directly beneath blastocyst implantation is modified by trophoblast invasion and becomes the decidua basalis. Decidua basalis disappears at the end of pregnancy. Decidua parietalis is also called as decidua vera