Which cell type is primarily active in the process of immunity?

Lymphocytes are the primary cell type involved in the immune response. They play a crucial role in recognizing pathogens and producing a targeted immune response. There are different types of lymphocytes, including B cells and T cells. B cells are responsible for producing antibodies that specifically target pathogens, while T cells are involved in directly killing infected cells and orchestrating the overall immune response. This specialization allows lymphocytes to effectively adapt and respond to various infectious agents, making them central to both the innate and adaptive immune systems.

While neutrophils, eosinophils, and basophils are also important components of the immune system, their roles are more specific and often pertain to the immediate response to infection, inflammation, or allergic reactions. Neutrophils are associated with the rapid response to infection, eosinophils are primarily involved in combating parasites and allergic reactions, and basophils play a role in inflammatory responses. However, lymphocytes are the key players in establishing long-term immunity and memory in the immune system.