What is the primary function of neutrophils in the immune system?

Neutrophils play a crucial role in the immune system as the first line of defense against infections, particularly bacterial infections. They are a type of white blood cell and are part of the innate immune response, which acts quickly to protect the body from pathogens. When there is an infection, neutrophils are among the first cells to arrive at the site of infection, where they work by engulfing and digesting bacteria through a process called phagocytosis. Additionally, they can release enzymes and antimicrobial substances that help to destroy pathogens.

The other options focus on functions that are not primary roles of neutrophils. Enhancing allergic responses relates more closely to other immune cells like eosinophils and mast cells, while providing immunity against viral infections is primarily handled by lymphocytes, specifically T and B cells. Generating antibodies is a function of B cells, which are also part of the adaptive immune response rather than the immediate action taken by neutrophils. This specificity of function highlights the importance of neutrophils in combating bacterial infections effectively.