Source:http://linkedlifedata.com/resource/umls/id/C0234194
MSH: Sensing of noxious mechanical, thermal or chemical stimuli by NOCICEPTORS. It is the sensory component of visceral and tissue pain (NOCICEPTIVE PAIN).,NCI: The stimulus-response process involving the stimulation of peripheral pain-carrying nerve fibers (e.g., C-fibers, A-delta fibers) and the transmission of impulses along peripheral nerves of the central nervous system, where the stimulus is perceived as pain. (Taber's)