Question

Correct hormonal sequence in the case of menstruation as
A. Oestrogen, FSH, progesterone
B. Oestrogen , progesterone, FSH
C. FSH, progesterone, oestrogen
D. FSH , oestrogen, progesterone

Answer 1

In order for you to arrive at an answer, try to understand the function of each of the hormones that are associated with the menstrual cycle. Throughout the menstrual cycle, the levels of each of the three hormones namely estrogen, progesterone, and follicle-stimulating hormone. The rise and fall of each of the three hormones bring about a successful menstrual cycle.

Complete answer:
The menstrual cycle is a series of changes that a woman goes through during each month to prepare for pregnancy. The menstrual cycle is divided into four phases namely menstruation, the follicular phase, ovulation, and the luteal phase.
In the first phase, that is the menstruation, every month there is the discharge of blood and the mucosal lining due to shedding of the lining of the uterus through the vagina.
The second phase is the follicular phase where the follicles present in the ovaries mature to give rise to the Graafian follicle. The level of follicle-stimulating hormone and the luteinizing hormone is highest in this phase.
In the third stage that is the ovulatory phase, the ovarian follicles rupture to release the egg. The fourth and final stage is the luteal phase. In this phase, the follicle gives out the egg and forms a white mass and is known as the corpus luteum which produces increasing amounts of the hormone progesterone. The level of FSH is high in the ovulatory phase and the level of estrogen is high during the middle of the follicular phase.

Thus, the correct option is (D) FSH, oestrogen, progesterone.

Note:
Menarche is the onset of first menstruation in girls at the age of about 14 years. Menopause on the other hand is the permanent stoppage of menstruation at the age of about 45 years of age.