The fetal portion of the placenta forms from the
A)amnion.
B)yolk sac.
C)inner cell mass.
D)chorion.
E)blastocoel.

Name: The fetal portion of the placenta forms from the A)amnion. B)yolk sac. C)inner cell mass. D)chorion. E)blastocoel.
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Question

Quizplus · Accepted Answer

The chorion is the outermost membrane surrounding the fetus and it gives rise to the fetal portion of the placenta. The amnion, yolk sac, inner cell mass, and blastocoel are all involved in early embryonic development but do not form the placenta.

The Fetal Portion of the Placenta Forms from the