Hering-Breuer reflex is related to `:-`

Options

A. Effect of pH on respiratory center
B. Effect of `CO_(2)` on respiratory center
C. Effect of nerves on respiratory center
D. Effect of temperature on respiratory center

Answer

### Step-by-Step Solution:

1. **Understanding the Hering-Breuer Reflex**:
- The Hering-Breuer reflex is a protective mechanism that prevents overinflation of the lungs. It is a reflex action that is controlled by the nervous system.

2. **Key Contributors**:
- The reflex is named after two scientists: Ewald Herring and Joseph Brewer, who studied this mechanism.

3. **Mechanism of Action**:
- When the lungs inflate excessively, stretch receptors located in the walls of the terminal bronchioles and atrium become activated. These stretch receptors are normally inactive but respond to excessive inflation.

4. **Role of the Respiratory Center**:
- The respiratory centers, located in the medulla of the brain, control the process of breathing (inspiration and expiration). When the lungs are overinflated, the stretch receptors send signals via nerves to these respiratory centers.

5. **Response to Overinflation**:
- The signals from the stretch receptors instruct the respiratory centers to switch off inspiration, preventing further air from entering the lungs. This action helps to avoid potential damage, such as the bursting of alveoli.

6. **Conclusion**:
- The Hering-Breuer reflex is primarily related to the effect of nerves on the respiratory center, as it involves nerve signals that regulate the breathing process.

### Final Answer:
The Hering-Breuer reflex is related to the effect of nerves on the respiratory center.

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