title: [Excitation contraction mechanism of the guinea pig bladder muscle].
mesh_terms: D000818:Animals; D006168:Guinea Pigs; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D011343:Procaine / Q000494:pharmacology; D013757:Tetraethylammonium Compounds / Q000494:pharmacology; D001743:Urinary Bladder / Q000502:physiology*
chemical_list: D013757:Tetraethylammonium Compounds; D011343:Procaine