BIOC39H3 Lecture Notes - Lecture 1: Genitourinary System, Innate Immune System, Antimicrobial Peptides
8 Apr 2015
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Document Summary
Lecture 1: the immune system & natural barriers to. The study of the physiological mechanisms that humans and other animals use to defend their bodies from invasion by other organisms. Caused by microorganisms, which have the advantage of reproducing and evolving much more rapidly than their human body hosts. Microorganisms can pit enormous populations of its species against an individual. A collective of cells dedicated to defense. To provide immunity that will provide protection from the disease in the future, the immune system must first do battle with the microorganism. A procedure whereby severe disease is prevented by prior exposure to the infectious agent in a form that cannot cause disease. Provides opportunity for the immune systems to gain the experience needed to make a protective response with little risk to health or life. The community of microbial species that inhabits a particular niche in the human body (skin, mouth, gut)
