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14 Cards in this Set
- Front
- Back
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Non specific defenses
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First line defence
Most important-skin-physical barrier against pathogens. Oil and swear glands-acidic skin- kills many pathogens. Ciliated mucous membranes-keeps pathogens out of airways. Gastric fluids-in the stomach-kills ingested pathogens |
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Specific defenses
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Phagocytic white blood cells-ungulfs and kills pathogens
Mature phagocyte- macrophage Found in blood, lymph, and spleen Interferons-small proteins created by virus infected cells to stop virus from infecting other cells |
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Complement system[specific defence]
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Triggered by pathogens
20 proteins are produced in the process Proteins circulate the blood and attract phagocytic cells to the infection site. Other proteins may help lyse(burst) invader cell membranes |
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Immune system
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Body's defense system against disease
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Bacteriophage
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A virus that infects bacteria
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Viral specificity
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Viruses only effect certain cells
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Virulence
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Ability to attach to, and invade and lyse a cell
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Lysis
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Rupturing of a cell
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Latent
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A virus that is in the Lysogenic cycle
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Vaccine
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A weakened virus
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Prophage
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Viral DNA inserted into host cell
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Lytic cycle importance
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Allows the virus to spread and quickly reproduce
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Lytic cycle
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Lysogenic pathway
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