title: Observations on the smooth muscle and contractile activity of the common bile duct.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D002395:Catecholamines / Q000494:pharmacology; D003135:Common Bile Duct / Q000033:anatomy & histology* / Q000502:physiology*; D004285:Dogs; D000882:Haplorhini; D006584:Hexamethonium Compounds / Q000494:pharmacology; D006801:Humans; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000187:drug effects / Q000502:physiology*; D010646:Phentolamine / Q000494:pharmacology
chemical_list: D002395:Catecholamines; D006584:Hexamethonium Compounds; D000109:Acetylcholine; D010646:Phentolamine