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what happens in each phase of menstrual cycle?​

What Happens In Each Phase Of Menstrual Cycle class=

Sagot :

The follicular phase: The time between the first day of the period and ovulation. Estrogen rises as an egg prepares to be released. The proliferative phase: After the period, the uterine lining builds back up again. Ovulation: The release of the egg from the ovary, mid-cycle

Answer:

There are 4 phases of menstrual cycle:

The first phase which is the follicular phase...

Follicular phase

- High levels of FSH secreted

- Function is to stimulate follicles in the ovaries

- One follicle begins to ripen and brings an egg to maturity

- Follicle secretes estrogen

- Endometrium proliferates

The second phase which is the ovulation...

Ovulation

- Follicle ruptures open and releases the ripened egg

The third phase which is the luteal phase...

Luteal phase

- After releasing an egg, the follicle turns into the corpus luteum manufactures progesterone.

- Progesterone secreted by the corpus luteum stimulates the glands of the endometrium to start secreting the nourishing substances.

The last phase which is the menstruation...

Menstruation

- Shedding of the inner lining of the uterus

• Normal menstrual cycle = 20 to 36 to 40 days. Average is about 28 days.

Menstruation begins on day 1 and continues until about day 4 or 5

• Follicular phase extends from about day 5 to about day 13

- Ovulation occurs on day 14

• Luteal phase extends from day 15 to the end of the cycle, day 28

- Mittelschmerz - middle pain; cramping in lower abdomen that occurs during ovulation