Which of the following WBCs are phagocytic cells.
(a) Monocytes (b) Neutrophils
(c ) Basophils (d) Eosinophils

Options

A. Only (a)
B. (a) and (b)
C. (a) and (c )
D. (c ) and (d)

Answer

To determine which of the following white blood cells (WBCs) are phagocytic cells, let's analyze each option provided in the question:

1. **Monocytes**:
- Monocytes are large white blood cells that play a crucial role in the immune response. They are known for their ability to engulf and digest pathogens and debris, making them phagocytic in nature.
- **Conclusion**: Monocytes are phagocytic cells.

2. **Neutrophils**:
- Neutrophils are another type of white blood cell and are often referred to as the "soldier cells" of the body. They are the most abundant type of WBCs and are essential in fighting infections. Like monocytes, neutrophils can also engulf and digest bacteria and other foreign particles, which classifies them as phagocytic cells.
- **Conclusion**: Neutrophils are phagocytic cells.

3. **Basophils**:
- Basophils are a type of white blood cell that primarily release histamine and other chemicals during allergic reactions and inflammation. They play a role in preventing blood clotting but are not involved in phagocytosis.
- **Conclusion**: Basophils are not phagocytic cells.

4. **Eosinophils**:
- Eosinophils are involved in the inflammatory response, particularly in allergic reactions and parasitic infections. They do not primarily function as phagocytic cells, although they can perform some phagocytosis.
- **Conclusion**: Eosinophils are not primarily considered phagocytic cells.

**Final Answer**: The white blood cells that are phagocytic in nature are **Monocytes (A)** and **Neutrophils (B)**. Therefore, the correct answer is both **A and B**.