Tonsils and adenoids are

Options

A. Lymph nodes
B. Connective tissue with blood supply
C. Endocrine glands
D. Small organs specialised to produce endorphins.

Answer

**Step-by-Step Solution:**

1. **Identify the Structures**: The question asks about tonsils and adenoids. We need to understand what these structures are.

2. **Define Tonsils**: Tonsils are lymph nodes located on each side of the back of the throat. They are part of the immune system and play a role in defending the body against pathogens.

3. **Define Adenoids**: Adenoids are patchy tissues located in the roof of the mouth, specifically behind the soft palate. Like tonsils, they are also part of the immune system.

4. **Classify the Structures**: Both tonsils and adenoids are part of the lymphatic system, which is involved in immune responses. They are not connective tissues, endocrine glands, or specialized organs for producing endorphins.

5. **Evaluate the Options**:
- **Option A**: Lymph nodes - This is correct as both tonsils and adenoids are lymphoid tissues.
- **Option B**: Connective tissue with blood supply - Incorrect.
- **Option C**: Endocrine glands - Incorrect as they do not secrete hormones.
- **Option D**: Small organs specialized to produce endorphins - Incorrect.

6. **Conclusion**: The correct answer is that tonsils and adenoids are lymph nodes.

**Final Answer**: Tonsils and adenoids are lymph nodes.

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