The main function of the neutrophil is:

The main function of the neutrophil is:

• A. Hypersensitivity reaction
• B. Immune response
• C. Phagocytosis
• D. Allergic reaction

Answer: (C)

Neutrophils are the body's frontline phagocytes in the innate immune system. Their defining task is phagocytosis: they rapidly move to infection sites, engulf invading bacteria or debris, and digest them using lysosomal enzymes and reactive oxygen species. This direct cleanup is the most characteristic and essential job of neutrophils, helping to prevent the spread of infection. While neutrophils participate in the broader immune response, hypersensitivity reactions and allergic responses involve other cells and mediators (such as mast cells, eosinophils, and IgE) and are not the primary function of neutrophils.

Neutrophils are the body's frontline phagocytes in the innate immune system. Their defining task is phagocytosis: they rapidly move to infection sites, engulf invading bacteria or debris, and digest them using lysosomal enzymes and reactive oxygen species. This direct cleanup is the most characteristic and essential job of neutrophils, helping to prevent the spread of infection.

While neutrophils participate in the broader immune response, hypersensitivity reactions and allergic responses involve other cells and mediators (such as mast cells, eosinophils, and IgE) and are not the primary function of neutrophils.