Which cells of "Crypts of Lieberkuhn" secrete antibacterial lysozyme ?

Options

A. Paneth cells
B. Zymogen cells
C. Kupffer cells
D. Argentaffin cells

Answer

To answer the question regarding which cells of the "Crypts of Lieberkühn" secrete antibacterial lysozyme, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure**: The Crypts of Lieberkühn are glandular structures located in the lining of the intestine, particularly in the small intestine and the colon. They are involved in the secretion of various substances that aid in digestion.

2. **Identify the Cell Types**: Within the Crypts of Lieberkühn, there are several types of cells, including enterocytes, goblet cells, Paneth cells, and enteroendocrine cells.

3. **Focus on Antibacterial Function**: The question specifically asks about the secretion of antibacterial lysozyme. Lysozyme is an enzyme that breaks down bacterial cell walls, providing antibacterial properties.

4. **Locate the Correct Cell Type**: Among the cells present in the Crypts of Lieberkühn, the **Paneth cells** are known for their role in secreting lysozyme and other antimicrobial substances.

5. **Conclude the Answer**: Therefore, the cells of the Crypts of Lieberkühn that secrete antibacterial lysozyme are the **Paneth cells**.

### Final Answer:
The cells of the Crypts of Lieberkühn that secrete antibacterial lysozyme are the **Paneth cells**.

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