title: Pain mechanism in the central nervous system.
mesh_terms: D000818:Animals; D001933:Brain Stem / Q000502:physiology; D002415:Cats; D002421:Caudate Nucleus / Q000502:physiology; D002490:Central Nervous System / Q000033:anatomy & histology / Q000502:physiology*; D002531:Cerebellum / Q000502:physiology; D002540:Cerebral Cortex / Q000502:physiology; D004027:Diencephalon / Q000502:physiology; D000882:Haplorhini; D006801:Humans; D007031:Hypothalamus / Q000502:physiology; D008526:Medulla Oblongata / Q000502:physiology; D010146:Pain; D010525:Peripheral Nerves / Q000502:physiology; D011149:Pons / Q000502:physiology; D012154:Reticular Formation / Q000502:physiology; D012688:Septum Pellucidum / Q000502:physiology; D013116:Spinal Cord / Q000033:anatomy & histology; D013133:Spinothalamic Tracts / Q000502:physiology; D013569:Synapses / Q000033:anatomy & histology; D009435:Synaptic Transmission; D013787:Thalamic Nuclei / Q000502:physiology