MC - Menstrual Cycle
It is the specific cycle that starts in females at the age of 12-13 years and continue till the age of 45. Normally, the period or duration of the cycle is about 28 days. There are 4 different phases of the cycle:
- Menstrual phase - In this phase some blood and other products of the disintegration of the inner lining of the uterus are discharged from the uterus. It lasts from 3-4 days.
- Follicular phase - It is the first part of the ovarian cycle in which the follicle prepares to release the egg and begins to produce estrogen. It lasts for about 8-9 days.
- Ovulatory phase - In the 28-day cycle, the Ovulatory phase begins around 14th day. In this phase, the egg is discharged and guided into the fallopian tube, waiting to be fertilized by the male's sperm cells.
- Luteal phase - It is the final phase of the ovarian cycle and it corresponds to the secretory phase of the uterine cycle.
If the egg is not fertilized, it dies, resulting in the discharge of some blood and other products of the disintegration of the inner lining of the uterus. This is called menstruation.