| paraganglia | Plural of paraganglion. (05 Mar 2000) |
|---|---|
| paraganglia, chromaffin | Small bodies containing chromaffin cells occurring outside of the adrenal medulla, most commonly near the sympathetic ganglia and in organs such as the kidney, liver, heart and gonads. (12 Dec 1998) |
| paraganglia, nonchromaffin | Several clusters of chemoreceptive and supporting cells associated with blood vessels and nerves (especially the glossopharyngeal and vagus). The nonchromaffin paraganglia sense pH, carbon dioxide, and oxygen concentrations in the blood and participate in respiratory, and perhaps circulatory, control. They include the carotid and aortic bodies, the glomus jugulare, and the glomus tympanicum. (12 Dec 1998) |