After taking a long deep breath we do not respire for some seconds due to

Options

A. more `CO_(2)` in blood
B. more `O_(2)` in blood
C. less `CO_(2)` in blood
D. less `O_(2)` in blood.

Answer

To answer the question, "After taking a long deep breath we do not respire for some seconds due to," we will analyze the physiological processes that occur during and after a deep breath.

### Step-by-Step Solution:

1. **Understanding Gas Exchange**: When we breathe, our body exchanges oxygen (O2) and carbon dioxide (CO2). Oxygen is taken in from the air, and carbon dioxide is expelled from the body.

2. **Taking a Deep Breath**: During a long deep breath, we inhale a significant amount of air, which includes a higher concentration of oxygen. This leads to an increase in the oxygen levels in our blood.

3. **Oxygen Saturation**: Blood can only carry a maximum of 100% saturation of oxygen. When we take in more oxygen than the body needs, the hemoglobin in red blood cells becomes saturated with oxygen.

4. **Removal of Carbon Dioxide**: Along with the intake of oxygen, there is also a removal of carbon dioxide from the body. This process can lead to a temporary decrease in the levels of carbon dioxide in the blood.

5. **Effects of Low Carbon Dioxide**: The body regulates breathing based on the levels of carbon dioxide in the blood. A decrease in carbon dioxide levels (hypocapnia) can lead to a temporary cessation of the urge to breathe, as the body senses that there is less CO2 to expel.

6. **Conclusion**: After taking a long deep breath, the reason we do not respire for some seconds is due to the **less carbon dioxide in the blood**. The body temporarily pauses respiration to allow carbon dioxide levels to normalize.

### Final Answer:
After taking a long deep breath, we do not respire for some seconds due to **less carbon dioxide in the blood**.

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