title: Effects of imidazole and phentolamine on the relaxant responses of guinea-pig taenia coli to transmural stimulation and to adenosine triphosphate.
mesh_terms: D000255:Adenosine Triphosphate / Q000037:antagonists & inhibitors*; D000818:Animals; D003106:Colon / Q000187:drug effects*; D004558:Electric Stimulation; D006168:Guinea Pigs; D007093:Imidazoles / Q000494:pharmacology*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D009638:Norepinephrine / Q000037:antagonists & inhibitors; D010646:Phentolamine / Q000494:pharmacology*
chemical_list: D007093:Imidazoles; D000255:Adenosine Triphosphate; D009638:Norepinephrine; D010646:Phentolamine