Non specific immunity is provided by all except

Options

A. Kupffer cells
B. Alveolar macrophage
C. Lymphocytes
D. Neutrophils

Answer

To solve the question "Non-specific immunity is provided by all except," we will analyze the options provided and determine which one does not contribute to non-specific immunity.

### Step-by-Step Solution:

1. **Understand Non-Specific Immunity**:
Non-specific immunity, also known as innate immunity, is the body's first line of defense against pathogens. It is not tailored to specific pathogens and is present from birth. It includes physical barriers (like skin), chemical barriers (like enzymes), and various immune cells that respond to any invading pathogen.

2. **Analyze the Options**:
- **Option A: Kupffer cells**: These are specialized macrophages located in the liver. They play a role in non-specific immunity by engulfing and destroying pathogens. Thus, they provide non-specific immunity.
- **Option B: Alveolar macrophages**: These macrophages are found in the lungs and also function in non-specific immunity by targeting and eliminating pathogens that enter the respiratory system. Therefore, they also provide non-specific immunity.
- **Option C: Lymphocytes**: Lymphocytes include B-cells and T-cells, which are crucial for specific immunity. B-cells produce antibodies that target specific antigens, while T-cells are involved in cell-mediated immunity against specific pathogens. Hence, lymphocytes do not provide non-specific immunity.
- **Option D: Neutrophils**: These are a type of white blood cell that responds quickly to infections and are part of the non-specific immune response. They help in engulfing and destroying pathogens.

3. **Conclusion**:
Based on the analysis, the only option that does not provide non-specific immunity is **C: Lymphocytes**. They are involved in specific immunity.

### Final Answer:
**C: Lymphocytes**