Immunity Flashcards
neutrophils
Most common type First responders to inflammation Attracted to cytokines, attract more WBCs Attack bacteria Main component of pus Phagocytic Granulocyte
Eosinophils
Granulocyte
allgeric/asthmatic, parasites inside body
Basophils
Granulocyte
+ mast cells
allergic, responsible for release of histamine
Ectoparasites
Macrophages
Monocyte
Phagocytize dead cells and pathogens
Present antigens
Release cytokines
Dendritic Cells
Present antigens
Link between innate and adaptive
Stim. immune response
Found in places that are in contact with environments
T lymphocytes
Only respond to one antigen
Most undergo apoptosis to prevent the attack of self tissues
Recognize major histocompatibility protein complexes
Begin development in bone marrow but mature in THYMUS
low in AIDS
Cytotoxic T cells
CD8+ cells
recognize MHC I
viruses/tumors
destroy cells
T Helper cells
CD4+ cells
recognize MHC II
release cytokines to stim. immune response
Natural Killer T cells (NKT)
Respond to other complexes other than MHC I and II
destroy cells and stim immune response
Memory T cells
Remain after infection so can respond quicker next time
Regulatory/suppressor T cells
Tone down T cell response to self cells/post infection