The loss of blood and mucous every month from vagina opening of female human being is called :

Options

A. Menstruation
B. Fertilisation
C. Leismania
D. None of the above.

Answer

**Step-by-Step Solution:**

1. **Understanding the Female Reproductive System**: The female reproductive system includes various organs, including the ovaries, uterus, and vagina. Each month, the ovaries release an egg in a process known as ovulation.

2. **Role of the Uterus**: After ovulation, the uterus prepares itself to receive a fertilized egg. The lining of the uterus, known as the endometrium, thickens to support a potential pregnancy.

3. **Fertilization Process**: If the egg released during ovulation is fertilized by sperm, it can implant in the thickened endometrium, leading to pregnancy.

4. **Menstrual Cycle**: If the egg is not fertilized, the body recognizes that there is no pregnancy. Consequently, the thickened lining of the endometrium is no longer needed.

5. **Menstruation**: The breakdown of the endometrial lining leads to the shedding of blood and mucus, which is expelled from the body through the vagina. This process occurs approximately every month and is known as menstruation.

6. **Conclusion**: Therefore, the loss of blood and mucus every month from the vaginal opening of a female human being is called menstruation.

**Final Answer**: The loss of blood and mucus every month from the vagina opening of a female human being is called menstruation.

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