White Blood Cells Flashcards
Eosinophils
Phagocytose antigen-antibody complexes. Also produce cytotoxic enzymes to damage larger particle. Numbers increase with allergic reactions. (bi-lobed nucleus)
Neutrophils
In blood for 6-10 hours. They migrate out of circulation to infection site and phagocytose foreign material. (multi-lobed nucleus)
Basophils
Immune response to parasites. Also accumulate at site of infection and release histamine/heparin as part of inflammatory response. (Bi-lobed nucleus)
Monocytes
Migrate to tissues to become macrophages that are phagocytic. Also antigen-presenting = inflammatory response (kidney-shaped nucleus)
Lymphocytes
B-cells develop into plasma cells which make antibodies (immunoglobulins). Helper-t-cells recognise antigens and activate cytotoxic T-cells to kill virally infected cells. (Big, deep staining nucleus)
Mast cells
Contain granules of heparin and histamine. Protect mucosal surfaces as are found in the mucosal tissues and not the blood.