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10 Cards in this Set
- Front
- Back
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list the functions of the three lines of defense
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block, survey, recognize, and destroy invaders
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what makes it clear to the immune system that a cell is pathogenic?
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the PAMP - pathogen-associated molecular pattern
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what receptor do leukocytes have?
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PRR - pattern recognition receptor
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what is the title for cells that are not a part of the body?
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nonself
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what percent of white blood cells are lymphocytes?
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20-35
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explain how fever is caused
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fever is initiated when a circulating substance called pyrogen resets the hypothalamic thermostat; this causes the body to create heat
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what is the name for when a chemical signals leukocytes to respond?
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chemotaxis
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what is the name for the method of locomotion which neutrophils sometimes use?
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diapedesis
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what do vasoactive mediators do?
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vasodilation, increased permeability of capillaries, etc.
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what do chemotactic mediators do?
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cell migrate to site of damage, major phagocytosis
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