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10 Cards in this Set
- Front
- Back
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host defense (name the 3)
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barriers, cells, chemicals
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what are the two types of immunity?
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Innate and Aquired
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what are the 3 functions of the immune system?
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1) surveys body
2) destroys foreign objects 3) remember information |
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Aquired Immunity:
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aka adaptive; SPECIFIC.
* must first see the infection to respond to it |
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Innate Immunity:
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born with it. NON-SPECIFIC.
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Barriers (first line of defense barriers)
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-block invasion at point of entry
-most are non-specific -skin, mucous membranes (stratum corneum) |
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other examples of Barrier defences:
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-mucous membranes (makes it difficult for attachment)
-respiratory tract -genitourinary tract -skin -lacrimation: tears to wash eye |
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lacrimation:
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tears to wash eye
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Chemical Defences:
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(these are innate)
-sebaceous secretions -meibomain glands: tear ducts -lysozyme -sweat -semen -vagina |
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lysozyme:
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digestive organelles in eye that destroy pathogens
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