title: Differential response of longitudinal and circular muscles of intact canine colon to morphine and bethanechol.
mesh_terms: D000818:Animals; D001626:Bethanechol Compounds / Q000494:pharmacology*; D003106:Colon / Q000187:drug effects*; D004285:Dogs; D005260:Female; D005769:Gastrointestinal Motility / Q000187:drug effects*; D008722:Methods; D008991:Monitoring, Physiologic; D009020:Morphine / Q000494:pharmacology*; D009130:Muscle, Smooth / Q000187:drug effects*; D013268:Stimulation, Chemical; D014159:Transducers
chemical_list: D001626:Bethanechol Compounds; D009020:Morphine