HLSC 1F90 Lecture Notes - Lecture 13: Innate Immune System, Allergen, Arthropod
16 Apr 2017
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Document Summary
Host an organism larger than the infectious agent that provides shelter and nutrients, facility of maturation, reproduction and spread. Infection presence of an infectious agent in the body (internally) Infestation presence of an infection agent on the body (externally) Disease a pathological condition of a part, organ, or system of an organism resulting from various causes, such as infection, genetic defect, or environmental stress, and characterized by an identifiable group of signs or symptoms . Vector an arthropod; usually an insect, capable of transmitting pathogens that cause infectious diseases. Preventing infection or fighting it when it happens. Remove altered self (example: damaged or malignant cells) Innate immunity gets better with repeated encounters with the same pathogen: false born with it, it doesn"t change. Among many functions, b-cells are in charge of: producing antibodies. Self-tolerance is essential for effective and safe immune reactions: true. An allergic response involves: improper immune response, repeated exposure to allergen, production of ig.
