Which of the following structures becomes part of the placenta?
A) chorion
B) amnion
C) blastocoel
D) yolk sac
E) more than one of these becomes part of the placenta

Question

Quizplus · Accepted Answer

The chorion is the outermost membrane that surrounds the embryo and becomes part of the placenta. The amnion is the inner membrane that forms the fluid-filled sac in which the embryo develops. The blastocoel is a fluid-filled cavity that forms early in development and is not part of the placenta. The yolk sac plays a role in early nutrient transfer but is not a major contributor to the placenta.

Which of the Following Structures Becomes Part of the Placenta