title: Analgesia and hyperreactivity produced by intracranial microinjections of morphine into the periaqueductal gray matter of the rat.
mesh_terms: D000698:Analgesia; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D001931:Brain Mapping; D002535:Cerebral Aqueduct / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D006358:Hot Temperature; D008297:Male; D008636:Mesencephalon / Q000187:drug effects*; D008845:Microinjections; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009043:Motor Activity / Q000187:drug effects*; D010146:Pain; D051381:Rats; D011930:Reaction Time / Q000187:drug effects
chemical_list: D009020:Morphine