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16 Cards in this Set
- Front
- Back
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main secondary response in antigen.
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IgG
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most abundant Ig
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IgG
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Fixes complement, crosses placenta providing infant with passive immunity.
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IgG
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opsonizes bacteria, neutralizes bacterial toxins and viruses
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IgG
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Prevents attachment of viruses and bacteria to mucus membranes
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IgA
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Monomer in circulation, dimer when secreted.
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IgA
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found in sectretions (tears, saliva, mucus) and breast milk (colostrum)
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IgA
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Produced in primary or immediate response to antigent
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IgM
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fixes complement but doesnt cross placenta
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IgM
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Antigen receptor on b-cell surface
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IgM
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monomer on b-cell or pentamer
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IgM
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Found on surface of many b-cells and in serum, but function unclear.
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IgD
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Binds mast cells and basophils
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IgE
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crosslinks when exposed to allergen, mediating type I (immediate hypersensitivity through inflammatory mediatirs (ie histamine).
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IgE
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mediates immunity to worms by activating eosinophils
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IgE
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lowest concentration in serum
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IgE
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