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immunity (innate (components (physical barriers (first line of defense) -…
immunity
innate
time span
once activated against a specific type of antigen, the immunity remains throughout the life
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activity type
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active all the time, ready to combat as soon as a foreign body enters human system
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components
physical barriers (first line of defense) - skin, mucous membranes and secretion, normal flora
chemical barriers (second line of defense) - innate immune cells, inflammation, complement, antimicrobial substances
phagocytic cells - leukocytes, neutrophils, macrophages
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dendritic cells (innate) 
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functions
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regulate adaptive immunity by determining whether an antigen will trigger an antibody or a cell-mediated response
complement is also the functional bridge between innate and adaptive immune responses that allows an integrated host defense to pathogenic challenges