Describe different stages of menstruation for …

➡️Follicular Phase: ✴️ This phase usually includes cycle days 6-13 or 14 in a 28 days cycle. ✴️ The follicle stimulating hormone (FSH) secreted by the anterior lobe of the pituitary gland stimulates the ovarian follicle to secrete oestrogens. ✴️ Oestrogen stimulates the proliferation of the endometrium of the uterine wall. ✴️ The endometrium becomes thicker by rapid cell multiplication and this is accompanied by an increase in uterine glands & blood vessels. ➡️Ovulatory Phase: ✴️Both LH & FSH attain a peak level in the middle of cycle (about 14 th day). ✴️ Oestrogen concentration in blood increases. ✴️ Rapid secretion of LH induces rupturing of graffian follicle and thereby the release of ovum. ✴️ In fact LH causes ovulation. ➡️ 4. Luteal Phase: ✴️ Includes cycle days 15 to 28. ✴️ Corpus luteum secretes progestrone. ✴️ Endometrium thickens. ✴️ Uterine glands become secretory

Menstruation is the cylic changes which starts after the puberty . Menstrual cycle consists of 4 stages. These are as follows: Menstruation : During this stage their is removal of blood along with the uterus lining. This stage occurs upto 3-5 days Proliferative phase: This phase is also known as follicular phase. In this their is proliferation of uterine wall. Ovulatory phase : During this phase the secondary oocyte is released from mature graffian follicles. Luteal phase: this phase occurs during 15- 28 day cycle. In this phase the corpus lutem begins to develop.