leukocytes

Neutrophil

Neutrophil

Eosinophil

Eosinophil

Basophil

Basophil

Monocyte

Monocyte

Lymphocyte

Lymphocyte

neutrophil function

phagocytizes micoorganisms and other substances

basophil function

releases histamine, which promotes inflammation, and heparin, which prevents clot formation

eosinophil function

releases chemicals that reduce inflammation, attacks certain worm parasites

lymphocyte function

produces antibodies and other chemicals responsible for destroying microorganisms, contributes to allergic reactions, graft rejection, tumor control, and regulation of the immune systemm

monocyte function

phagocytic cell in the blood, leaves the blood and becomes a macrophage, which phagocytizes bacteria, dead cells, cell fragments, and other debris within tissues

granulocytes

neutrophil, basophil, eosinophil

agranulocytes

lymphocytes, monocytes