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These cells are phagocytes.
These cells ingest small organisms (mostly bacteria), destroying both the pathogen and themselves in the process.
These cells link the non-specific and specific divisions of the immune system by presenting pathogen fragments to cells of the specific immune system.
These cells kill body cells infected by pathogens by poking holes in their cell membranes.
These cells are the first line of resistance to viruses.
These cells produce hydrogen peroxide and hypochlorous acid to destroy pathogens.
These cells ingest pathogens without destroying themselves in the process.
These cells patrol tissues outside the blood vessels and ingest whole pathogens, dead cells, and other large debris.
These cells play a role in recognizing and killing cancer cells.
These cells have a single type of antigen receptor on the cell surface.
These cells develop in the bone marrow.
These cells are responsible for humoral immunity.
These cells produce antibodies.
These cells are responsible for cell-mediated immunity.
These cells undergo clonal selection to produce effector and memory cells.
These cells directly destroy infected body cells.
These cells mature in the thymus.
These cells activate other immune cells by producing cytokines.
These cells are lymphocytes.