Final answer:
Yes, neutrophils are phagocytic cells critical to the immune system. They contain granules with enzymes and substances to destroy pathogens, and they swiftly respond to infection sites.
Step-by-step explanation:
Yes, neutrophils are phagocytic cells. They are vital components of the immune system and are often referred to as the first responders to infection sites. Neutrophils migrate via chemotaxis from the bloodstream to infected tissues. As granulocytes, neutrophils possess cytoplasmic granules, which include a variety of substances such as lysozyme, oxidants like hydrogen peroxide, and defensins. These substances enable neutrophils to lyse or break down bacterial cell walls and disrupt the plasma membranes of bacteria and fungi.
Neutrophils play a crucial role not only in the innate immune response but also are suggested to be involved in the adaptive immune response. They act rapidly against invading pathogens by phagocytizing them and destroying them using the enzymes contained in the granules. Furthermore, the significant increase in neutrophil count is a typical indicator of infection or inflammation. Neutrophils' phagocytic activity is an essential defense mechanism against infection, particularly in scenarios like burn injuries where they help to prevent further infection due to skin barrier destruction.