PH of blood in arteries and veins is

Options

A. more in veins less in arteries
B. more in artieries less in veins
C. same
D. no defineite relation

Answer

To answer the question regarding the pH of blood in arteries and veins, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding pH**:
- pH is a measure of how acidic or basic a solution is. A pH of 7 is considered neutral. Values below 7 indicate acidity, while values above 7 indicate alkalinity (basic).

2. **Normal pH Range of Blood**:
- The normal pH of blood ranges from 7.35 to 7.45, which is slightly alkaline.

3. **pH in Arteries**:
- Blood in the arteries has a higher pH compared to blood in the veins. This means that the blood in arteries is more alkaline.

4. **pH in Veins**:
- Blood in the veins has a lower pH, indicating that it is more acidic. This is primarily due to the presence of dissolved carbon dioxide, lactic acid, and other metabolic wastes.

5. **Conclusion**:
- Therefore, the pH of blood in arteries is higher (more alkaline) than that in veins (more acidic).

6. **Correct Answer**:
- The correct option is: "more in arteries, less in veins."

### Final Answer:
The pH of blood in arteries is higher than in veins.

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