Which statement 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 placenta secretes human chorionic gonadotropin, estrogen, and progesterone and serves the functions of the circulatory, respiratory, and digestive systems for the fetus.
E) None of these.

Question

Quizplus · Accepted Answer

The placenta does secrete human chorionic gonadotropin, estrogen, and progesterone, but it does not serve the functions of the circulatory, respiratory, and digestive systems for the fetus. Maternal and fetal blood are kept separate within the placenta, although nutrients and gases are exchanged across the placental membrane. Therefore, the correct statement is that the placenta secretes human chorionic gonadotropin, estrogen, and progesterone.

Which Statement Is Correct