Receptor, Muscarinic M3Receptor, Muscarinic M1Receptors, MuscarinicReceptor, Muscarinic M2Muscarinic AntagonistsMuscarinic AgonistsReceptor, Muscarinic M4N-MethylscopolamineReceptor, Muscarinic M5DiaminesCarbacholParasympatholyticsGallamine TriethiodidePirenzepineAtropineDiphenylacetic AcidsCholinergic AgonistsAcetylcholineCholinergic AgentsThiadiazolesMuscarineDioxolanesScopolamine HydrobromideScopolamine DerivativesPiperidinesParasympathomimeticsDicyclomineBethanecholRadioligand AssayBiperidenMuscle, SmoothOxotremorinePilocarpineMethacholine ChlorideCHO CellsGuinea PigsMaltaTracheaCricetinaeMuscle ContractionIleumGTP-Binding ProteinsDose-Response Relationship, DrugTropicamideDrug AgonismBinding, CompetitiveObidoxime ChlorideGTP-Binding Protein alpha Subunits, Gq-G11BenztropinePhosphatidylinositolsGTP-Binding Protein alpha Subunits, Gi-GoIsatinPertussis ToxinType C PhospholipasesAllosteric RegulationCricetulusTacrineInositol PhosphatesVirulence Factors, BordetellaGuanosine 5'-O-(3-Thiotriphosphate)Cholinergic FibersHeart AtriaPropylbenzilylcholine MustardKineticsG Protein-Coupled Inwardly-Rectifying Potassium ChannelsCalciumRGS ProteinsBenzilatesRats, Sprague-DawleyArecolinePhthalimidesElectric StimulationPhospholipase C betaTritiumAllosteric SiteQuinuclidinesQuinuclidinyl BenzilateMethacholine CompoundsDisplacement (Psychology)Rats, WistarPatch-Clamp TechniquesReceptors, CholinergicParasympathetic Nervous SystemIsoindolesTransfectionMuscle RelaxationBethanechol CompoundsIsoproterenolMembrane PotentialsCell MembraneSignal TransductionCells, CulturedPyridinesPotassium ChannelsHeartTime FactorsCyclic AMPMyocardiumInositol 1,4,5-TrisphosphateDexetimide