Human being have ability to maintain and moderate the respiratory rhythm by the help of :

Answer

To answer the question regarding how human beings maintain and moderate respiratory rhythm, we can break down the solution into the following steps:

### Step-by-Step Solution:

1. **Understanding Respiratory Rhythm**:
- The respiratory rhythm refers to the pattern and rate of breathing, which is essential for maintaining adequate oxygen levels and removing carbon dioxide from the body.

2. **Role of the Neural System**:
- The human body relies on the neural system to regulate and control the respiratory rhythm. This system includes various components that work together to ensure that breathing is adjusted according to the body's needs.

3. **Key Components of the Neural System**:
- The primary components involved in regulating respiratory rhythm are the brain and spinal cord.
- The brain, particularly the medulla oblongata and pons, plays a crucial role in controlling the rate and depth of breathing.

4. **Response to Body's Demand**:
- The neural system allows the body to respond to changes in activity levels, such as during exercise or rest. For example, during physical activity, the demand for oxygen increases, and the neural system signals the respiratory muscles to increase the breathing rate.

5. **Conclusion**:
- Therefore, the ability of human beings to maintain and moderate respiratory rhythm is primarily facilitated by the neural system, particularly through the brain and spinal cord.

### Final Answer:
Human beings have the ability to maintain and moderate the respiratory rhythm with the help of the neural system.

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