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Defense Mechanisms

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Question
Answer
What is the definition of Non-specific Defenses?   those that do not recognize specific foreign cells  
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What is the significance of Non-specific Defenses?   reduce burden of Specific Defenses  
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What are the Non-specific Defenses?   1. Skin & Mucus Membranes; 2. Phagocytosis; 3. Inflammatory Response; 4. Fever; 5. Interferons  
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What type of defense is provided by Skin and Mucus Membranes?   Physical/Chemical barriers to infection  
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What type of defense is provided by Phagocytosis?   Leukocytes (granular & macrophages) throught body organs --> pus  
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What is pus?   dead WBC and Bacteria  
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What type of defense is provided by Inflammatory Responses?   release of Histamine & Prostaglandins --> Vasodilation/Edema --> slows spread of Infectious Agents --> Improves EXTRAcellular Phagocytosis & enables Antibody diffusion  
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What type of defense is provided by Fever?   Interleukin 1 secreted by Macrophages exposed to Pathogenic Bacteria --> denature  
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What are Interferons?   Proteins released by Virus infected cells  
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How do Interferons protect the body?   enhance activity of NK-cells and stimulate nearby host cells to Synthesize Anti-viral Enzymes  
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