Destruction of pneumotaxic centre in pons causes

Options

A. Forceful respiration
B. Apnoea
C. Apneustic respiration
D. Accelerated respiration

Answer

### Step-by-Step Solution:

1. **Understanding the Pneumotaxic Center**:
- The pneumotaxic center is located in the pons of the brain and is responsible for regulating the rhythm and depth of breathing. It works in conjunction with the medulla, which is the primary respiratory center.

2. **Function of the Pneumotaxic Center**:
- Its main role is to maintain a normal breathing pattern. It helps to control the rate of breathing by sending signals to the respiratory muscles.

3. **Effect of Destruction**:
- If the pneumotaxic center is destroyed, it disrupts the normal regulation of breathing. This leads to an abnormal breathing pattern.

4. **Resulting Breathing Pattern**:
- The abnormal breathing pattern that results from the destruction of the pneumotaxic center is known as "apneostic breathing." This type of breathing is characterized by deep inhalations followed by short or incomplete exhalations.

5. **Identifying the Correct Option**:
- Among the options provided:
- **Forceful respiration**: This involves the use of accessory muscles and is not directly related to the destruction of the pneumotaxic center.
- **Apnea**: This refers to a total absence of breathing, which is not the case here.
- **Apneostic respiration**: This is the correct answer as it directly describes the breathing pattern resulting from the destruction of the pneumotaxic center.

6. **Conclusion**:
- Therefore, the destruction of the pneumotaxic center in the pons causes apneostic respiration.