At what point during fetal development is the decidua basalis/chorionic villi collectively referred to as the placenta?
A) the first month
B) the ninth month
C) the start of fourth month
D) the end of second month

Question

Quizplus · Accepted Answer

During the start of fourth month of fetal development, the decidua basalis and chorionic villi have merged together and formed the placenta, which serves as the connection between the fetus and the mother's blood supply. Before this time, these structures are still developing and haven't fully transformed into the functional placenta.

At What Point During Fetal Development Is the Decidua Basalis/chorionic