Definition: Cells that store epinephrine secretory vesicles. During times of stress, the nervous system signals the vesicles to secrete their hormonal content. Their name derives from their ability to stain a brownish color with chromic salts. Characteristically, they are located in the adrenal medulla and paraganglia (PARAGANGLIA, CHROMAFFIN) of the sympathetic nervous system.
located in adrenal medulla & sympath paraganglia; store epinephrine
ExamplesChromaffin Granules
Other names Chromaffin Cell; Cells, Chromaffin; Cell, Chromaffin
