Number of WBCs per `mm^(3)` of human blood is ideally

Options

A. 8000
B. 7000
C. 6500
D. 6000

Answer

To determine the ideal number of white blood cells (WBCs) per cubic millimeter (mm³) of human blood, follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the ideal number of WBCs in human blood, specifically in terms of mm³.

2. **Identify the Types of Blood Cells**: Recognize that WBCs, also known as leukocytes, are crucial components of the immune system.

3. **Know the Normal Range**: The normal range of WBCs can vary based on age. For adults, the typical range is between 5,000 to 10,000 WBCs per mm³.

4. **Determine the Average**: The average number of WBCs in adults is approximately 8,000 per mm³.

5. **Evaluate the Options**: The options provided are:
- a) 8000
- b) 7000
- c) 6500
- d) 6000

6. **Select the Correct Answer**: Since the average number of WBCs in adults is 8,000 per mm³, the correct answer is option (a) 8000.

### Final Answer:
The ideal number of WBCs per mm³ of human blood is **8000**.

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