title: Maximal responses in guinea-pig isolated ileum preparations: influence of longitudinal and circular muscle.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D002794:Choline / Q000494:pharmacology; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology
chemical_list: D000644:Quaternary Ammonium Compounds; D002794:Choline; D000109:Acetylcholine