What is the reason of arrested oogenesis in female upto puberty ?

Options

A. Nutrition is not properly available
B. Follicles are not matured
C. Some inhibitory factors released by granulosa cells or follicular cells
D. Inactivation of germinal epithelium of ovary

Answer

### Step-by-Step Solution:

1. **Understanding Oogenesis**: Oogenesis is the process of egg (ovum) formation in females. It begins during fetal development and continues until puberty.

2. **Arrested Development**: In females, oogenesis is arrested at the prophase stage of meiosis I. This means that the primary oocytes remain in this stage until the female reaches puberty.

3. **Number of Oocytes**: At birth, females have approximately 80,000 to 1,000,000 primary oocytes in their ovaries, but these oocytes do not mature until puberty.

4. **Role of Puberty**: Puberty is a critical developmental stage when the body becomes capable of reproduction. Hormonal changes during puberty trigger the maturation of oocytes.

5. **Inhibitory Factors**: The arrest in oogenesis is primarily due to inhibitory factors. These factors prevent the maturation of oocytes until the female body is ready for reproduction.

6. **Nutrition and Health**: During childhood, the body focuses on growth and development rather than reproduction. Adequate nutrition and health are crucial during this stage, and the body prioritizes these over reproductive functions.

7. **Follicular Activity**: Follicular cells (granulosa cells) release inhibitory signals that prevent the maturation of oocytes until the appropriate time, which is during puberty.

8. **Conclusion**: The arrested oogenesis in females up to puberty is due to a combination of hormonal regulation, nutritional factors, and the body's readiness for reproduction.