Receptor, Muscarinic M3Receptor, Muscarinic M1Receptors, MuscarinicReceptor, Muscarinic M2Muscarinic AntagonistsMuscarinic AgonistsReceptor, Muscarinic M4N-MethylscopolamineReceptor, Muscarinic M5CarbacholDiaminesParasympatholyticsPirenzepineGallamine TriethiodideCholinergic AgonistsAtropineAcetylcholineCholinergic AgentsDiphenylacetic AcidsMuscarineThiadiazolesPiperidinesScopolamine HydrobromideParasympathomimeticsRadioligand AssayDioxolanesScopolamine DerivativesMuscle, SmoothDose-Response Relationship, DrugOxotremorineBethanecholCHO CellsDicyclomineGuinea PigsBiperidenMethacholine ChloridePilocarpineDopamine AgonistsCricetinaeRats, Sprague-DawleyTracheaCalciumGTP-Binding ProteinsMuscle ContractionMaltaIleumDrug AgonismPertussis ToxinBinding, CompetitiveGTP-Binding Protein alpha Subunits, Gq-G11CricetulusGuanosine 5'-O-(3-Thiotriphosphate)Patch-Clamp TechniquesRats, WistarGTP-Binding Protein alpha Subunits, Gi-GoTropicamideType C PhospholipasesPhosphatidylinositolsObidoxime ChlorideVirulence Factors, BordetellaAllosteric RegulationMembrane PotentialsCells, CulturedBenztropineInositol PhosphatesGABA AgonistsIsoproterenolNicotinic AgonistsIsatinCyclic AMPPurinergic P1 Receptor AgonistsSignal TransductionAdrenergic AgonistsTacrineG Protein-Coupled Inwardly-Rectifying Potassium ChannelsAdrenergic beta-AgonistsElectric StimulationKineticsCholinergic FibersHeart AtriaPropylbenzilylcholine MustardPyridinesDrug InteractionsNeuronsArecolineLigandsTransfectionQuinuclidinesRGS ProteinsCationsCell LineBenzilatesPotassium ChannelsMuscle RelaxationCell MembraneTritiumIon ChannelsAdenylate CyclaseAdrenergic alpha-AgonistsPhthalimides