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Pathogens (Goals (recognize and kill pathogens/disrupt their function, act…
Pathogens
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Three parts
innate immunity
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includes protective barriers, mucus
interferons (cytokines), phagocytes, natural killer cells
adaptive immunity
specialized for specific pathogens, able to recognize and respond faster and stronger later
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cells
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T lymphocytes
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proteins- cell receptors (TCRs)- diverse, all same on a cell
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complement system
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3 broad functions
bind to particular components on microbe surface or to antibody bound to microbe surface- help phagocyte recognize
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signaling molecules
cytokines
proteins or peptides that eg. are secreted from a helper T cell and bind to receptors on other cells like cytotoxic T cells and B cells
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most B cells, all cytotoxic T cells cant func w/o signal from helper T cells
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