Macro policeman of blood `:-`

Options

A. Neutrophil
B. Basophil
C. Monocyte
D. Lymphocyte

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the "macropolism of blood," which refers to the type of blood cell that acts as a "policeman" in the immune system.

2. **Identifying the Options**: The options provided are:
- Neutrophils
- Basophils
- Monocytes
- Lymphocytes

3. **Defining Macropolism**: The term "macropolism" suggests large cells that play a significant role in the immune response, particularly in phagocytosis (the process of engulfing and digesting foreign particles).

4. **Analyzing Each Option**:
- **Neutrophils**: These are phagocytic cells but are smaller in size compared to monocytes. They are sometimes referred to as "micropolismen" due to their smaller size.
- **Basophils**: These cells are involved in inflammatory responses but do not perform phagocytosis, making them irrelevant to the question.
- **Monocytes**: These are large white blood cells that are phagocytic in nature. They can engulf foreign antigens and are considered the "macropolismen" of blood due to their size and function.
- **Lymphocytes**: These cells are involved in the adaptive immune response (B lymphocytes for antibody production and T lymphocytes for cytotoxicity) but do not perform phagocytosis.

5. **Conclusion**: Based on the analysis, monocytes are the correct answer as they are the large phagocytic cells referred to as the "macropolismen" of blood.

### Final Answer:
**Monocytes** are termed as the macropolismen of blood.

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