Give the occurrence and function of Kupffer cells.

Explanation

### Step-by-Step Text Solution:

1. **Occurrence of Kupffer Cells**:
- Kupffer cells are specialized macrophages located in the liver. They are a type of liver cell that plays a crucial role in the immune response.

2. **Function of Kupffer Cells**:
- The primary function of Kupffer cells is to act as phagocytes. This means they are capable of engulfing and digesting foreign particles, pathogens, and dead cells.
- Due to their phagocytic nature, Kupffer cells help in the process of lysis, which refers to the breakdown or destruction of foreign substances.
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