Question

The mammalian corpus luteum produces

• A. Estrogen
• B. Progesterone
• C. Luteotropic hormone
• D. Luteinizing hormone

Answer 1

Answer: (B)

Progesterone

In the human female menstrual cycle, the ovulation (ovulatory phase) is followed by the luteal phase during which the remaining parts of the Graafian follicle transform as the corpus luteum. In case of pregnancy, the corpus luteum secretes large amounts of progesterone, which is essential for maintenance of the endometrium. Such an endometrium is necessary for implantation of the fertilised ovum and other events of pregnancy. During pregnancy all events of the menstrual cycle stop and there is no menstruation. In the absence of fertilisation, the corpus luteum degenerates. This causes disintegration of the endometrium leading to menstruation, marking a new cycle

So, the correct answer is 'Progesterone'