title: [Excitatory effects of morphine on the toad spinal cord in vitro].
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D002024:Bufo marinus / Q000502:physiology*; D003061:Codeine / Q000494:pharmacology; D005260:Female; D005727:Ganglia, Spinal / Q000502:physiology; D066298:In Vitro Techniques; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D012018:Reflex / Q000502:physiology; D013116:Spinal Cord / Q000502:physiology*; D013268:Stimulation, Chemical; D013797:Thebaine / Q000494:pharmacology
chemical_list: D013797:Thebaine; D009020:Morphine; D003061:Codeine