Matching Pairs Immune System Match: Key ConceptsOnline version Match immune components with their brief roles. by Dr. David Myers 1 Interferon 2 Helper T cells 3 Physical barriers 4 Complement System 5 Neutrophils 6 Vasodilation 7 Cytotoxic T cells 8 NK cells 9 Eosinophils 10 Opsonization 11 Antibodies 12 Memory B cells 13 B cells First responders; ingest bacteria Attack parasites; allergic response Protein that blocks viral spread increases blood flow for quick immune cell arrival produce antibodies Proteins that bind antigens respond to second exposure by quickly producing antibodies marks pathogens for phagocyte destruction destroy infected or abnormal cells prevent pathogens from entering body Enhance inflammation; kill microbes activate B cells and cytotoxic T cells kill infected cells with perforins
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