List of immune cells

This is a list of immune cells, also known as white blood cells, white cells, leukocytes, or leucocytes. They are cells involved in protecting the body against both infectious disease and foreign invaders.^[1]

Image	Name	Subtype	Class	Alternate names	Diameter (μm)	Main targets	References
	Neutrophil	Granulocyte	Neutrophil	Neutrocytes Heterophils Polymorphonuclear leukocytes	12-15	Bacteria Fungi	[2][3][4]
	Eosinophil	Granulocyte	Eosinophil	Eosinophiles Acidophils	12-15	Larger parasites Modulate allergic inflammatory responses	[2][3]
	Basophil	Granulocyte	Basophil	Basophilic granulocyte	12-15	Release histamine for inflammatory responses	[2][3][5]
	Mast cell	Granulocyte	Mast cell	Mastocyte Labrocyte Mastocytus	8-20	Release histamine for inflammatory responses	[6][7]
	Macrophage	Monocyte	Macrophage	Macrophagocytus Mφ MΦ MP	20-21	Bacteria Viruses Fungi Cancer cells Cellular debris	[8][9]
	Histiocyte	Monocyte	Macrophage	Tissue macrophage Macrophagocytus immobilis	20-21	Spent neutrophils General macrophage targets	[10][8]
	Kupffer cell	Monocyte	Macrophage	Stellate macrophages Kupffer–Browicz cells Liver macrophage Macrophagocytus stellatus	20-21	Foreign debris General macrophage targets	[11][8]
	Alveolar macrophage	Monocyte	Macrophage	Pulmonary macrophage Dust cell	20-21	Carbon debris from lungs General macrophage targets	[8]
	Dendritic cell	Monocyte	Dendritic cell	DC Cellula dendritiformis	10-15	Process antigen material and present to the T cell Messengers between innate and adaptive immune system	[12][13]
	B cell	Lymphocyte	B cell	B lymphocyte Lymphocytus B	8-10	Produces antibody molecules	[14][4]
	Plasma cell	Lymphocyte	B cell	Plasma B cells Effector B cells Plasmocytus	8-10	Active B cells that produces large amounts of antibodies	[4][15]
	Memory B cell	Lymphocyte	B cell	MBC	8-10	Memorizes the characteristics of the antigens Triggers an accelerated and robust secondary immune response	[4][16]
	Killer T cell	Lymphocyte	T cell	T lymphocyte Lymphocytus T	8-10	Virus-infected cells Cancer cells Recruits and communicates with other types of immune cells	[4][17]
	Memory T cell	Lymphocyte	T cell	MTC	8-10	Memorizes the characteristics of the antigens Triggers an accelerated and robust secondary immune response	[4][18]
	T helper cell	Lymphocyte	T cell	Th cells CD4+ cells CD4-positive cells	8-10	Aids the activity of other immune cells by releasing cytokines	[4][19]
	Natural killer T cell	Lymphocyte	T cell	NKT	6-7	Produces large amounts of immunomodulatory cytokines Allergens Cancer cells Pathogens	[20][21]
	Innate lymphoid cell	Lymphocyte	Innate lymphoid cell	ILC	~6	Secretes signalling molecules Regulates immune cells	[22][23]
	Natural killer cell	Lymphocyte	Innate lymphoid cell	NK cell Large granular lymphocytes LGL	6-7	Virus-infected cells Intracellular pathogens Cancer cells	[21][24]