Question

During early pregnancy, chorionic gonadotropin maintains which structure to keep the endometrium thick and suppress menstruation?

Options

• The anterior pituitary gland

• The corpus luteum

• The zona pellucida

• The Graafian follicle

Answer 1

Chorionic gonadotropin secreted by the membranes surrounding the implanted embryo maintains the corpus luteum. This keeps the endometrium thick and suppresses menstruation, sustaining the hormonal support needed for the pregnancy.