What is the primary function of neutrophils?

Neutrophils play a crucial role in the immune system, primarily acting as one of the first lines of defense against infections. Their main function is to identify and engulf pathogens such as bacteria and fungi through a process known as phagocytosis. Once they have engulfed the pathogens, neutrophils can destroy them using enzymes stored in their granules. This rapid response is vital for controlling and eliminating infections, thus making neutrophils essential to the body's innate immune response.

The other options, while related to the immune system, focus on functions carried out by different types of immune cells. Producing antibodies is primarily the role of B lymphocytes. Releasing histamines is typically associated with mast cells and basophils, which are involved in allergic responses and inflammation. Coordinating the immune response is generally the function of T cells and helper cells, which help orchestrate the activities of other immune components. Each of these cells has specialized roles that complement the action of neutrophils but do not encompass its primary function.