Inflammatory substances are released from which leucocyte

Options

A. monocyte
B. basophil
C. eosinophil
D. leucocytes.

Answer

To answer the question "Inflammatory substances are released from which leucocyte?", we can analyze the options provided and identify the correct leukocyte responsible for releasing inflammatory substances.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are Monocytes, Basophils, Eosinophils, and a general term Leukocytes.

2. **Evaluate Monocytes**:
- Monocytes are a type of white blood cell that play a role in fighting infections.
- They are not primarily responsible for releasing inflammatory substances.
- **Conclusion**: Monocytes are not the correct answer.

3. **Evaluate Basophils**:
- Basophils are another type of white blood cell that release inflammatory substances.
- They contain histamine, which is a vasodilator that promotes blood flow to tissues, and heparin, an anticoagulant that prevents blood clotting.
- **Conclusion**: Basophils are responsible for releasing inflammatory substances, making this the correct answer.

4. **Evaluate Eosinophils**:
- Eosinophils are white blood cells that are involved in combating parasitic infections and allergic reactions.
- They are not primarily known for releasing inflammatory substances.
- **Conclusion**: Eosinophils are not the correct answer.

5. **Evaluate Leukocytes**:
- Leukocytes is a general term for white blood cells, which includes various types such as monocytes, basophils, and eosinophils.
- Since the question asks for a specific type of leukocyte, this option is too broad.
- **Conclusion**: Leukocytes is not the correct answer.

6. **Final Answer**: Based on the evaluations, the correct answer is **Basophils**.