part of part of capable of capable of pain receptor cell detection of mechanical stimulus involved in sensory perception of pain mechanoreceptor sensory receptor nociceptor nerve ending pain receptor UBERON:0035017 A peripheral terminal of a peripheral, afferent sensory pain receptor cell that is sensitive to injury or pain, usually caused by extreme thermal exposures, mechanical forces, or other noxious stimuli. The nociceptor nerve ending innervates target tissue and transduces noxious stimuli to the central nervous system via some axon(s). nociceptor MESH:D009619