What are the physiologc effects of estrogen and what is its

What are the physiologc effects of estrogen and what is its role in the menstual cycle ?

Solution

Estrogen is the female sex hormone secreted by the ovarian follicles, corpus luteum under the influence of FSH (follicle stimulating hormone) and luteinising hormone (LH) in females. Estrogen is essential for the development of secondary sexual characters in females and plays an important role in the regulation of menstrual cycle.

There are approximately six types of estrogens present in our body, among which the estrone, estradiol and estriol are present in higher quantities. Estradiol is the most prominent and potent estrogen present in our body.

The concentration of FSH and LH decreases after ovulation, the progesterone concentration increases with little estrogen. During this phase of the uterine cycle (16 to 28 days), the vasculature of endometrium is increased by progesterone and estrogen.

If the ovum is not fertilized, the concentration of estrogen and progesterone decreases, allowing the rise FSH. FSH initiates the process of follicular recruitment and thus, the next menstrual cycle.