Question

what do you understand by the term menstruation? Differenciate between the terms menarche and menopause. also describe the cycle of events of menstruation.​

Answer 1

Menstruation

the process in a woman of discharging blood and other material from the lining of the uterus at intervals of about one lunar month from puberty until menopause, except during pregnancy

Main Differences between Menarche and Menopause

• Menarche is the beginning of the menstruation cycle while menopause marks the end of the menstruation cycle.
• Menarche start at the age of 9-16 years in girls while menopause begins at the age of 45-56 years old in women
• Menarche result in an increase of estrogen while menopauses causes a slow decrease and further declines
• Menarche increases bone mass while menopause decreases bone mass
• Menarche is an onset of reproduction ability while menopause is the end of the reproduction 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: In this phase, the primary follicle starts developing into a mature Graffian follicle. The endometrium also starts proliferating. The uterus starts preparation for another pregnancy.
3. Ovulatory phase: Mid-cycle phase, this 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: It is the post-ovulation phase, where the fate of the corpus luteum is decided. If fertilization occurs, pregnancy starts. If fertilization doesn’t occur, it marks the onset of another cycle.

Answer 2

Answer:

Menstruation: The periodic blood that flows as a discharge from the uterus. Also called menorrhea, the time during which menstruation occurs is referred to as menses. The menses occurs at approximately 4 week intervals to compose the menstrual cycle.The word "menstruation" is etymologically related to "moon". The terms "menstruation" and "menses" are derived from the Latin mensis (month), which in turn relates to the Greek mene (moon) and to the roots of the English words month and moon.Menstruation is the process of the shedding of the uterine lining on a regular monthly basis. ... If the egg is not fertilised, then the lining of the uterus breaks down and gets Released in the form of blood through the vagina. This lasts for about two to eight days.