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==Introduction==
[[Image:Type II Hypersensitivity.jpg|right|thumb|150px|Type II Hypersensitivity-Brian Catchpole RVC 2008]]
[[Image:Type II Hypersensitivity.jpg|right|thumb|150px|Type II Hypersensitivity-Brian Catchpole RVC 2008]]
Production of [[Immunoglobulin M|IgM]] or [[Immunoglobulin G|IgG]] to cell surface antigens or extracellular matrix proteins.
Production of [[Immunoglobulin M|IgM]] or [[Immunoglobulin G|IgG]] to cell surface antigens or extracellular matrix proteins.
==Mechanism==
==Mechanism==
''' "Neutralisation" blockade of receptors:'''
''' "Neutralisation" blockade of receptors:'''
* Antibodies attach to receptors, which prevents other molecules attaching.
* Antibodies attach to receptors, which prevents other molecules attaching.
* For example in myasthenia gravis antibodies attach to acetylcholine receptors which in turn prevents acetylcholine from attaching to the receptor and thus muscle contraction of that cell does not occur.
* For example in myasthenia gravis antibodies attach to acetylcholine receptors which in turn prevents acetylcholine from attaching to the receptor and thus muscle contraction of that cell does not occur.
''' Immunological attack on target cells, destroying them by (see diagram):'''
''' Immunological attack on target cells, destroying them by (see diagram):'''
<br><br>
{{Jim Bee 2007}}
[[Category:Hypersensitivity]]
[[Category:Hypersensitivity]]