Lecture 11 Acquired Immunity

Lecture 11 Acquired Immunity - Acquired Immunity Lecture 11...

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Acquired Immunity Lecture 11
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Immune factors are triggered during infection by antigens , substances produced by microbes, and are specific for only those pathogens to which one is exposed The immune system Acquired physiological strategies: immunity Antigens: usually a protein or a polysaccharide toxins, viruses, bacteria, fungi
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The acquired strategy Acquired: during a person’s lifetime--> specific exposure The protection itself is very specific to the toxin or the pathogen The protection is usually long term against the toxin or pathogen Components include: 1.) Proteins called antibodies produced by B-cells (humoral immunity) 2.) Cells called cytotoxic and helper T-cells (cell-mediated immunity) It is why vaccination works
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What mobilizes the immune response? Any substance that specifically causes an immune response: antigen Usually a protein or a polysaccharide (remember Gram- cell wall?) Particulate or soluble Usually much stronger if they are large (small must bind a
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Lecture 11 Acquired Immunity - Acquired Immunity Lecture 11...

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