Which statement concerning the placenta is correct?
A) The placenta secretes human chorionic gonadotropin, estrogen, and progesterone.
B) The placenta serves the functions of the circulatory, respiratory, and digestive systems for the fetus.
C) Maternal and fetal blood are mixed together within the placenta.
D) The olacenta is fully formed in 4 weeks.

Question

Quizplus · Accepted Answer

The placenta secretes hormones including human chorionic gonadotropin, estrogen, and progesterone, which are important for maintaining pregnancy and fetal growth.

B) is incorrect because while the placenta does provide oxygen and nutrients to the fetus, it does not replace the functions of the circulatory, respiratory, and digestive systems.

C) is incorrect because maternal and fetal blood do not mix directly, but rather exchange nutrients and waste products across the placental membrane.

D) is incorrect because the placenta is not fully formed until around 12 weeks of pregnancy.

Which Statement Concerning the Placenta Is Correct