click below
click below
Normal Size Small Size show me how
Chemical Mediators
chemical mediators of innate immunity and functions
| Question | Answer |
|---|---|
| surface chemicals | prevent microbial growth or kill microorganisms ; traps them until destroyed |
| histamine | causes vasodilation, increases vascular permeability, stimulating gland secretions, attracts eosinophils, and causes smooth muscle contraction of airway passages |
| kinins | cause vasodilation, increase vascular permeability, stimulate pain receptors, and attract neutrophils |
| interferons | interfere with virus production and infection |
| complement | increase vascular permeability, stimulate the release of histamine, activate kinins, lyse cells promote phagocytosis,and attract neutrophils, monocytes, macrophages, and eosinophils |
| prostaglandins | some cause smooth muscle relaxation and vasodilation, increase vascular permeability, and stimulate pain receptors |
| leukotrienes | cause prolonged smooth muscle contraction, increase vascular permeability, and attract neutrophils and eosinophils |
| pyrogens | stimulate fever production |