The scrotum helps in maintaining the low temperature of the testes

Options

A. `4-4.5^(@) C` temperature higher than body temperature to facilitate spermatogenesis .
B. `3-3.5^(@) C`temperature higher than body temperature to facilitate spermiogenesis .
C. `2-2.5^(@) C` temperature lower than body temperature to facilitate spermatogenesis .
D. `5-5.5^(@) C` temperature lower than body temperature to facilitate spermiogenesis .

Answer

To solve the question regarding the role of the scrotum in maintaining the temperature of the testes, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding the Function of the Scrotum**:
- The scrotum is a pouch-like structure that holds the testes outside the abdominal cavity. This positioning is crucial for regulating the temperature of the testes.

2. **Importance of Temperature for Spermatogenesis**:
- Spermatogenesis, the process of sperm production, requires a specific temperature range. The optimal temperature for this process is slightly lower than the normal body temperature.

3. **Normal Body Temperature**:
- The average human body temperature is approximately 37 degrees Celsius. Therefore, for effective spermatogenesis, the temperature of the testes needs to be lower than this.

4. **Determining the Optimal Temperature**:
- Research indicates that the ideal temperature for spermatogenesis is about 2 to 2.5 degrees Celsius lower than the normal body temperature. This means the temperature of the testes should be around 34.5 to 35 degrees Celsius.

5. **Conclusion**:
- Based on the information, the scrotum helps maintain the testes at a temperature that is 2 to 2.5 degrees Celsius lower than body temperature, which is essential for the development of normal sperm.

### Final Answer:
- The correct option is **C: 2 to 2.5 degrees Celsius lower than body temperature**.