title: Pain pathways and mechanisms.
abstract: The current concepts of the anatomy of the pain pathways have been described and the mechanism by which they function has been discussed.
mesh_terms: D000818:Animals; D001921:Brain / Q000503:physiopathology; D004745:Enkephalins / Q000502:physiology; D006801:Humans; D009434:Neural Pathways / Q000503:physiopathology; D009619:Nociceptors / Q000503:physiopathology; D010146:Pain / Q000503:physiopathology*; D010525:Peripheral Nerves / Q000503:physiopathology; D012154:Reticular Formation / Q000503:physiopathology; D011984:Sensory Receptor Cells / Q000503:physiopathology; D013116:Spinal Cord / Q000503:physiopathology; D013133:Spinothalamic Tracts / Q000503:physiopathology; D013376:Substantia Gelatinosa / Q000503:physiopathology
chemical_list: D004745:Enkephalins