The fetal period ends
A)at the end of the first trimester.
B)when implantation is complete.
C)at the end of the third trimester.
D)when the heart begins to beat.

Question

Quizplus · Accepted Answer

The fetal period extends from the end of the embryonic period, which is approximately the end of the eighth week of gestation, until birth. This period spans the second and third trimesters, which together make up about two-thirds of the overall gestational period. Therefore, the fetal period ends at the end of the third trimester, which is when the baby is considered fully developed and ready for delivery.

The Fetal Period Ends