start stage end stage receptor cell (sensu Animalia) chemoreceptor cell A cell specialized to detect chemical substances and relay that information centrally in the nervous system. Chemoreceptors may monitor external stimuli, as in taste and olfaction, or internal stimuli, such as the concentrations of oxygen and carbon dioxide in the blood. TAO:0009124 chemoreceptor cells ZFA:0009124 zebrafish_anatomy CL:0000206 unknown adult