The thin layer of the developing embryo which secretes a hormone that keeps the corpus luteum functioning is the
A) cervix.
B) endometrium.
C) amnion.
D) plasma membrane.
E) chorion.

Question

Quizplus · Accepted Answer

The chorion is the part of the developing embryo that secretes the hormone human chorionic gonadotropin (hCG), which keeps the corpus luteum functioning. The corpus luteum, in turn, produces progesterone necessary to maintain the early stages of pregnancy.

The Thin Layer of the Developing Embryo Which Secretes a Hormone