What is menstruation? Explain.
What is menstruation? Explain.
Menstruation is the process of the shedding of the uterine lining on a regular monthly basis in women. During menstruation, the uterus wall along with blood vessels break off. This causes blood to come out and a new wall of the uterus is formed. Menstruation generally lasts for 4 to 5 days.
Phases of the menstrual cycle
The menstrual cycle is divided into four phases, namely:
1. Menstrual phase: Day 1, uterus lining which is prepared for implantation starts to shed which lasts 3 to 5 days.
2. Follicular phase: A matured egg follicle releases an egg from one of the ovaries. Also, the uterus starts preparation for another pregnancy.
3. Ovulatory phase: Mid-cycle phase, is the phase in which ovulation takes place i.e., day 13-17. The end of the follicular phase along with the ovulation period defines the fertilization period.
4. Luteal phase: Post ovulation phase where the fate of corpus luteum is decided. If fertilization occurs, pregnancy starts. If fertilization doesn’t occur, it marks the onset of another cycle.
Menstruation is the process of the shedding of the uterine lining on a regular monthly basis in women. During menstruation, the uterus wall along with blood vessels break off. This causes blood to come out and a new wall of the uterus is formed. Menstruation generally lasts for 4 to 5 days.
Phases of the menstrual cycle
The menstrual cycle is divided into four phases, namely:
1. Menstrual phase: Day 1, uterus lining which is prepared for implantation starts to shed which lasts 3 to 5 days.
2. Follicular phase: A matured egg follicle releases an egg from one of the ovaries. Also, the uterus starts preparation for another pregnancy.
3. Ovulatory phase: Mid-cycle phase, is the phase in which ovulation takes place i.e., day 13-17. The end of the follicular phase along with the ovulation period defines the fertilization period.
4. Luteal phase: Post ovulation phase where the fate of corpus luteum is decided. If fertilization occurs, pregnancy starts. If fertilization doesn’t occur, it marks the onset of another cycle.
