Granules contain histamine in

Options

A. Neutrophils
B. Eosinophils
C. Acidophils
D. Basophils.

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks which type of cell granules contain histamine.

2. **Understand the Options**: The options given are neutrophils, eosinophils, acidophils, and basophils.

3. **Define Granulocytes**: Granulocytes are a type of white blood cell that contain granules in their cytoplasm. They play a crucial role in the immune response.

4. **Examine Each Option**:
- **Neutrophils**: These are the most abundant type of white blood cells and are primarily involved in fighting bacterial infections. They do not contain histamine.
- **Eosinophils**: These cells are primarily involved in combating parasitic infections and play a role in allergic reactions. They do not contain histamine.
- **Acidophils**: This term is less commonly used in the context of white blood cells; it generally refers to cells that stain with acidic dyes. They are not known for containing histamine.
- **Basophils**: These are a type of granulocyte that contains large cytoplasmic granules filled with histamine and other substances. They are involved in inflammatory responses and allergic reactions.

5. **Conclusion**: Based on the analysis, basophils are the correct answer as they contain granules that store histamine, which is a vasodilator and plays a role in promoting blood flow to tissues.

**Final Answer**: Basophils contain granules that store histamine.

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