neural crest derived neuron chromaffin cell BTO:0000259 FMA:69263 A cell that stores 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 of the sympathetic nervous system. phaeochromocyte amine precursor uptake and decarboxylation cell