In the Later Stages of Pregnancy,most of the Mother's Estrogen

Question

In the later stages of pregnancy,most of the mother's estrogen and progesterone comes from the
A) corpus luteum.
B) corpus albicans.
C) ovaries.
D) placenta.

Accepted Answer

The placenta is the primary source of estrogen and progesterone in the later stages of pregnancy. The corpus luteum and corpus albicans play a role in the production of hormones earlier in pregnancy, but are not significant sources in the later stages. The ovaries also do not play a major role in hormone production during pregnancy.