Six types of Leukocytes

• Monocytes: macrophage
• Lymphocytes: B cell, T cell
• Granulocytes: neutrophil, eosinophil, basophil

Role: phagocytose debris and microorganisms; amoeboid motility, chemotaxis

Role: mature into plasma cell and produce antibodies

Role: kill virus-infected cells, tumor cells, and reject tissue grafts; also control immune response

Role: phagocytose bacteria resulting in pus; amoeboid motility; chemotaxis

Role: destroy parasites; allergic reactions

Role: store and release histamine; allergic reactions