Which of the following is a disclike structure where the fetal and maternal circulations meet (baby eats,excretes,and breathes at this site)?
A)Umbilicus
B)Placenta
C)Primary germ layers
D)Zygote

Question

Quizplus · Accepted Answer

The placenta is a disc-like structure that forms where the fetal and maternal circulations meet. This is where the exchange of nutrients, oxygen, and waste products occurs between the mother and the developing fetus. The umbilicus is the site of attachment between the fetus and the placenta, but it is not a structure where exchange occurs. The primary germ layers are the three layers of cells that give rise to all the tissues and organs of the body, but they do not play a role in the formation of the placenta. The zygote is the initial cell formed when sperm and egg combine, but it is not a structure that plays a role in the exchange of materials between mother and fetus.

Which of the Following Is a Disclike Structure Where the Fetal