Question

explain the menstruation cycle.

Answer 1

Mensatruation also known as a period or monthly,is the regular dicharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The first period usually begins between twelve and fifteen years of age,a point in time known as menarche. However,periods may occasionally start as young as eight years old and still be considerd normal. The average age of the first period is generally later in the developing world, and earlier in the developing world. The typical lenght of time between the first day of one period and the first day of the next is 21 to45days in young women, and 21 to 31 days in adult. Bleeding usually lasts around 2 to 7 days.

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Answer 2

Menstrual cycle

Female Reproductive System undergoes some changes at puberty stage. Those changes occur at the interval of every 28-30 days.
These repetitive changes are called as Menstrual cycle.

Menstrual cycle is a natural process. It is controlled by Four hormones
namely FSH ( Follicle Stimulating Hormone ) , Luteinizing Hormone (LH) , estrogen and Progesterone.

One of the several follicles in the ovary starts to develop along with the oocytes present in it, under the effect of FSH.

This developing follicle secretes estrogen. Endometrium of the uterus starts to develop (during first cycle ) or regenerate ( during subsequent cycles ) under the effect of estrogen.

Meanwhile , developing follicle completes it's development. It bursts under the effect of the Luteinizing Hormone and the oocytes are released. This is ovulation.

Remaining tissues of the burst follicle forms the corpus luteum. Corpus luteum starts to secrete progesterone.

Endometrial glands secrete their secretion under the effect of the progesterone. Such endometrium Is ready for implantation of embryo.

This is Menstrual Cycle.

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