A paraganglion (pl. paraganglia) is a group of non-neuronal cells derived of the neural crest. They are named for being generally in close proximity to sympathetic ganglia. They are essentially of two types: chromaffin or sympathetic paraganglia made of chromaffin cells and nonchromaffin or parasympathetic ganglia made of glomus cells. They are ne...
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http://en.wikipedia.org/wiki/Paraganglion
A small, roundish body containing chromaffin cells; a number of such bodies may be found retroperitoneally near the aorta and in organs such as the kidney, liver, heart, and gonads. ... Synonym: chromaffin body. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
(par″ә-gang´gle-on) pl. paragan´glia a collection of chromaffin cells, derived from neural ectoderm, occurring outside of the adrenal medulla, most commonly near the sympathetic ganglia and in relation to the aorta and its branches. Most, if not all, of the paraganglia secrete epinephrine or norepinephrine.
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http://www.encyclo.co.uk/local/21001
Type: Term Pronunciation: par′ă-gang′glē-on, -ă Definitions: 1. A small, rounded body containing chromaffin cells; a number of such bodies may be found retroperitoneally near the aorta and in organs, kidney, liver, heart, and gonads. Synonyms: chromaffin body
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http://www.medilexicon.com/medicaldictionary.php?t=65027
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