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Chapter 21: The Immune System – Innate Immunity

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Introduction to the Immune System

Introduction to Innate Immunity

Introduction to First-Line Defenses

Physical Barriers in First-Line Defenses: Skin

Physical Barriers in First-Line Defenses: Mucous Membrane

First-Line Defenses: Chemical Barriers

Cells of the Immune System: Granulocytes

Cells of the Immune System: Agranulocytes

Natural Killer Cells

Phagocytosis

Introduction to Inflammation

Steps of the Inflammatory Response

Fever

Introduction to the Complement System

Activation Pathways of the Complement System

Effects of the Complement System

Review of the Complement System