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Number of leucocytes in per mm–3 of bloo...

Number of leucocytes in per mm–3 of blood is –

A

10000 – 20000

B

6000 – 8000

C

15000 – 20000

D

20000 – 30000

Text Solution

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The correct Answer is:
To determine the normal number of leucocytes (white blood cells) in a cubic millimeter of blood, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Leucocytes**: Leucocytes, also known as white blood cells (WBCs), are crucial components of the immune system. They help the body fight infections and other diseases. 2. **Types of Leucocytes**: Leucocytes can be classified into two main categories: - **Granulocytes**: These cells contain granules in their cytoplasm and include neutrophils, eosinophils, and basophils. - **Agranulocytes**: These cells do not contain granules and include lymphocytes and monocytes. 3. **Normal Range of Leucocytes**: The normal count of leucocytes in human blood is typically measured in cells per cubic millimeter (mm³). 4. **Standard Count**: According to medical standards, the normal range of leucocytes in blood is approximately 6,000 to 8,000 cells per mm³. 5. **Conclusion**: Based on the information provided, the correct answer to the question regarding the number of leucocytes in per mm³ of blood is **6,000 to 8,000**. ### Final Answer: The number of leucocytes in per mm³ of blood is **6,000 to 8,000**.
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