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Immunology is a broad branch of biomedical science that covers the study of all aspects of the immune system in all organisms. It deals with, among other things, the physiological functioning of the immune system in states of both health and disease; malfunctions of the immune system in immunological disorders (autoimmune diseases, hypersensitivities, immune deficiency, allograft rejection); the physical, chemical and physiological characteristics of the components of the immune system in vitro, in situ, and in vivo. Immunology has various applications in several disciplines of science, and as such is further divided.

Histological examination of the immune system


Even before the concept of immunity (from immunis, Latin for "exempt") was developed, numerous early physicians characterised organs that would later prove to be part of the immune system. The key organs of the immune system are thymus, spleen, bone marrow, lymph vessels, lymph nodes and secondary lymphatic tissues such as tonsils, adenoids, and skin. Two major organs, the thymus and spleen, are examined histologically only post-mortem during autopsy. However some lymph nodes and secondary lymphatic tissues can be surgically excised for examination while patients are still alive.

Many components of the immune system are actually cellular in nature and not associated with any specific organ but rather are embedded or circulating in various tissues located throughout the body.

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RT @ASMAwards: Gene Shearer wins the 2010 Abbott Laboratories Immunology Award for his research on HIV pathogenesis. http://bit.ly/4Tju4X
Talulinha (I Andrade) Fri, 18 Dec 2009 20:23:23 -0000
RT @ASMAwards: Gene Shearer wins the 2010 Abbott Laboratories Immunology Award for his research on HIV pathogenesis. http://bit.ly/4Tju4X
Gene Shearer wins the 2010 Abbott Laboratories Immunology Award for his research on HIV pathogenesis. http://bit.ly/4Tju4X
ASMAwards (ASM Awards) Fri, 18 Dec 2009 20:16:12 -0000
Gene Shearer wins the 2010 Abbott Laboratories Immunology Award for his research on HIV pathogenesis. http://bit.ly/4Tju4X
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GraceBarkwell (GraceBarkwell) Fri, 18 Dec 2009 19:42:23 -0000
immunology megaupload Rapidshare Search12 files http://bit.ly/6spScM
New blog post: NOT TRENDY: Immunology http://www.trendyblackguy.com/my-life/not-trendy-immunology/
trendyblackguy (Junior Obionwu) Fri, 18 Dec 2009 19:29:54 -0000
New blog post: NOT TRENDY: Immunology http://www.trendyblackguy.com/my-life/not-trendy-immunology/
Free online journals with focus on immunology: http://ow.ly/NsQZ
ArgosBiotech (Eberhard Dietze) Fri, 18 Dec 2009 18:31:30 -0000
Free online journals with focus on immunology: http://ow.ly/NsQZ
Bridging the Neurology-Immunology Barrier http://bit.ly/8mDJoZ
TAGHIVScience (Richard Jefferys) Fri, 18 Dec 2009 18:20:29 -0000
Bridging the Neurology-Immunology Barrier http://bit.ly/8mDJoZ

 
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