title: Central nervous system mechanisms of analgesia.
mesh_terms: D000698:Analgesia; D000818:Animals; D001921:Brain / Q000187:drug effects / Q000502:physiology*; D004298:Dopamine / Q000502:physiology; D004558:Electric Stimulation; D006801:Humans; D008474:Medial Forebrain Bundle / Q000502:physiology; D008636:Mesencephalon / Q000502:physiology; D008959:Models, Neurological; D009020:Morphine / Q000494:pharmacology; D009270:Naloxone / Q000494:pharmacology; D009638:Norepinephrine / Q000502:physiology; D010146:Pain / Q000503:physiopathology; D012701:Serotonin / Q000502:physiology; D009435:Synaptic Transmission
chemical_list: D012701:Serotonin; D009270:Naloxone; D009020:Morphine; D004298:Dopamine; D009638:Norepinephrine