Histamine secreting cells are found in

Options

A. connective tissue
B. lungs
C. muscular tissue
D. nervous tissue

Explanation

**Step-by-Step Solution:**

1. **Understanding Histamine Secretion**: Histamine is a chemical involved in immune responses, particularly in allergic reactions. It is secreted by specific cells in the body.

2. **Identifying the Cells**: The two main types of cells that secrete histamine are basophils and mast cells.

3. **Locating the Cells**: Basophils are a type of white blood cell found in the bloodstream, while mast cells are typically found in connective tissues throughout the body.

4. **Analyzing the Given Options**: The question provides four options:
- Lungs (an organ)
- Connective tissue
- Muscular tissue
- Nervous tissue

5. **Determining the Correct Tissue**: Since basophils and mast cells are both associated with the immune response and are found in connective tissue, the correct answer is connective tissue.

6. **Eliminating Incorrect Options**:
- Lungs are an organ involved in gas exchange and do not secrete histamine.
- Muscular tissue is responsible for movement and does not contain histamine-secreting cells.
- Nervous tissue is involved in transmitting signals and does not secrete histamine.

7. **Final Answer**: Therefore, the correct answer is that histamine-secreting cells are found in **connective tissue**.

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