Immune System

Immune System - Immune System No readings are required for...

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Immune System No readings are ‘required’ for this chapter. Focus on the lecture only.
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‘Divisions’ of the Immune System
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Surface Barriers Skin: keratinized stratified epithelium secretions (acidic) Mucous membranes: acid (stomach) enzymes mucus * *
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Internal Defenses Phagocytes: Macrophages, Neutrophils, Eosinophils engulf pathogens NK cells: Non-selective cells that destroy cancerous or infected cells * * *
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Internal Defenses Fever: Pyrogens increase body temp Metabolic rate increases Spleen and Liver sequester iron & zinc needed for bacterial cell division * * * *
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Internal Defenses NK cells: Non-selective cells that destroy cancerous or infected cells * * * * *
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Internal Defenses Antimicrobial proteins: 1.Interferons: Newly infected cells send warning message to neighbors * * * * * *
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Internal Defenses Antimicrobial proteins: 1.Complement: * * * * * *
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Internal Defenses Inflammation: Tissue injury results in release of chemical mediators of tissue repair and WBC recruitment Hallmarks of inflammation: 1.Pain 2.Heat 3.Redness 4.Swelling * * * * * * *
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Internal Defenses: Inflammation
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This note was uploaded on 06/10/2010 for the course BIOL 252 taught by Professor Johnson during the Spring '07 term at UNC.

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Immune System - Immune System No readings are required for...

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