Why does menstruation occur ?

Question

Answer

Hey Cause of mentruationWhen the egg is released by ovum it waits fr the sperm to fertilise it in fallopian tube.If it is not fertilised it starts to come out of female body as mentrual flow.Menstrual flow contains blood and linings of endometrium(outer layer of uterus).BLOOD of mentruation has a proerty due to which it never clots.Menstruation is also known by other name.i) Weeping of uterus for lost egg.ii) Funeral of egg.@Spider

Answer

Menstruation occurs when the female gamete i.e. the egg does not get any sperm to fertilize with. In this the lining of uterus( that was there for conceiving the embryo) ruptures and along with it blood vessels and unfertilized egg comes out. Menstruation is commonly known as periods.

Answer

Menstruation: A Natural Process of the Female Reproductive System

Menstruation, commonly known as a period, is a natural process that occurs in the female reproductive system. It is a monthly cycle where the lining of the uterus is shed, resulting in bleeding from the vagina. Menstruation usually starts during puberty and continues until menopause.

1. The Menstrual Cycle:
The menstrual cycle is a complex process that involves the coordination of hormones and the reproductive organs. It typically lasts around 28 days, although it can vary for different individuals. The menstrual cycle can be divided into four phases: menstruation, follicular phase, ovulation, and luteal phase.

2. Menstruation:
Menstruation is the first phase of the menstrual cycle and marks the beginning of a new cycle. During this phase, the lining of the uterus, known as the endometrium, is shed. This shedding is accompanied by bleeding, which is released through the vagina. The average duration of menstruation is 3 to 7 days.

3. Hormonal Regulation:
The menstrual cycle is regulated by various hormones, including estrogen and progesterone. These hormones are produced by the ovaries, which are the primary reproductive organs in females. The levels of estrogen and progesterone fluctuate throughout the cycle, leading to the different phases.

4. Follicular Phase:
The follicular phase begins on the first day of menstruation and lasts until ovulation. During this phase, the pituitary gland releases follicle-stimulating hormone (FSH), which stimulates the growth of follicles in the ovaries. Each follicle contains an egg, but usually, only one dominant follicle matures.

5. Ovulation:
Ovulation occurs around the middle of the menstrual cycle, usually on day 14. During this phase, the mature follicle ruptures, releasing an egg from the ovary. This egg then travels through the fallopian tube towards the uterus. Ovulation is the most fertile period of the menstrual cycle and the time when pregnancy is most likely to occur.

6. Luteal Phase:
After ovulation, the ruptured follicle transforms into a temporary gland called the corpus luteum. The corpus luteum produces progesterone, which prepares the uterus for pregnancy. If fertilization does not occur, the corpus luteum degenerates, leading to a decrease in hormone levels and the start of a new menstrual cycle.

Conclusion:
Menstruation is a natural process that occurs to prepare the female reproductive system for potential pregnancy. It involves the shedding of the uterine lining, regulated by hormones, and occurs as part of the menstrual cycle. Understanding menstruation is essential for every woman as it helps in monitoring reproductive health and understanding fertility patterns.

Answer

Mensuration occurs when the ovary didn't get fertilized and the utrinal lining becomes thick then this lining sheds with the release of ovary with blood

Similar Class 10 Doubts

why does menstruation occur?

why does dispersion does not occur in a glass prism?

When does DNA copying occur?

what tide only occurs on ocean water why it does not occur on pond's water

Why does mentruation occur?

Top Courses for Class 10View all

Science Class 10

Social Studies (SST) Class 10

Mathematics (Maths) Class 10

English Grammar Advanced

English Grammar Basic

Top Courses for Class 10

Top Courses for Class 10

Suggested Free Tests

Related Content

About Class 10

Class 10 Study Material

Class 10 All Subjects

NCERT Textbook Solutions

Other Classes

Important Links

Company