BIOB32H3 Lecture Notes - Corticosteroid, Allergen, Antigen Processing
28 Mar 2013
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Document Summary
The immune system: innate and adaptive body defenses. Immunity: two intrinsic defense systems: adaptive (specific) defense system, third line of defense mounts attack against particular foreign substances, takes longer to react than the innate system, works in conjunction with the innate system. Respiratory tract mucosae: mucus-coated hairs in the nose trap inhaled particles, mucosa of the upper respiratory tract is ciliated, cilia sweep dust- and bacteria-laden mucus away from lower respiratory passages. Antimicrobial proteins: enhance the innate defenses by, attacking microorganisms directly, hindering microorganisms" ability to reproduce, the most important antimicrobial proteins are, interferon, complement proteins. Adaptive (specific) defenses: the adaptive immune system is a functional system that, recognizes specific foreign substances, acts to immobilize, neutralize, or destroy them, amplifies inflammatory response and activates complement. Adaptive immune defenses: the adaptive immune system is antigen-specific, systemic, and has memory, it has two separate but overlapping arms, humoral, or antibody-mediated immunity, cellular, or cell-mediated immunity.
