The corpus luteum persists in pregnancy because the implanting blastocyst secretes:

A. GnRH, which stimulates the pituitary gland to secrete FSH and LH.
B. human chorionic gonadotropin (hCG).
C. large quantities of FSH and LH.
D. cortisol.
E. progesterone and estrogen.


Answer: B

Anatomy & Physiology

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