GENERAL HISTOLOGY

Detailed explanation-1: -Neutrophils are an important component of the innate immune system and provide a front line of defense against bacterial infection. Although most bacteria are killed readily by neutrophils, some bacterial pathogens have the capacity to circumvent destruction by these host leukocytes.

Detailed explanation-2: -Leukocytes are part of the body’s immune system. They help the body fight infection and other diseases. Types of leukocytes are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).

Detailed explanation-3: -Neutrophils recognize pathogens via classes of cell surface and intracellular receptors (Figure 2) that bind to microbe-specific molecules. Neutrophils also use numerous receptors that recognize host proteins (such as IgG and complement) opsonizing the microbe.