pain receptors
Nerve damage detectors
Pain receptors are specialized nerve endings that detect potentially harmful stimuli—extreme temperatures, intense pressure, or tissue damage—and send signals to the brain.
Also called nociceptors.
They're distributed throughout the skin, muscles, joints, and internal organs, though some areas have higher concentrations than others: The cornea has an unusually high density of pain receptors.
- substance PPain-signaling neuropeptide
- nerve endingNeural tissue detecting stimuli
- neuronImpulse-conducting cell
- capsaicinChili heat compound
- burning sensationPainful heat-like feeling
analgesic · transduction · sensory threshold · inflammation · neuropathy · spinal cord · glutamate · sensory input · sensory neurons · action potential · stimulus · peripheral nerves · nerve impulse · sensitization · dendrite · throbbing · axon · numbness
- body sensorschemoreceptors, mechanoreceptors, baroreceptors, proprioceptors, pressure sensors
- sensessight, smell, taste, hearing, touch
- body sensestouch, proprioception, kinesthesia, tactile sensation, skin sensation
- sensory organsear, nose, eyes, tongue, skin
- sensory systemschemoreception, photoreception, proprioception, olfaction, gustation
- receptorstaste receptor, hormone receptor, D2 receptor, H1 receptor, photoreceptors
pain receptorsmechanoreceptors
Sensory cells detecting pressure
proprioceptors · Pacinian corpuscles · photoreceptors · chemoreceptors · baroreceptors
pain receptorsdopamine receptors
Neural binding sites for motivation chemical