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innate immunity
| Term | Definition |
|---|---|
| 1st & 2nd line of defense | innate (non specific) immunity |
| 3rd line of defense | adaptive (specific/recognizes) immunity |
| 1st line of defense | barriers (skin, gastrointestinal) |
| 2nd line of defense | cells, chemicals, processes |
| phagocyte | 2nd line of defense neutrophils, macrophages, dendrite, eosinophils |
| natural killer cells | 2nd line of defense secrete chemicals & cause apoptosis of infected or unwanted cells |
| interferons | 2nd line of defense secreted by viral infected cells active immune cells uninfected cells turn off protein synthesis infected cells induce death via apoptosis |
| opsonization | 2nd line of defense tagging of pathogens for phagocytosis (protein attached to the surface |
| complement proteins | 2nd line of defense when activated by pathogens they do opsonization, lyse pathogenic cells themselves, & induce inflammation |
| inflammation | 2nd line of defense immunovascular defense: isolate & eliminate |
| inflammation increases what | vascular permeability & vasodilation |