Receptor, Muscarinic M3Receptor, Muscarinic M1Receptors, MuscarinicAcetylcholineReceptor, Muscarinic M2Muscarinic AntagonistsMuscarinic AgonistsReceptor, Muscarinic M4N-MethylscopolamineReceptor, Muscarinic M5CarbacholDiaminesParasympatholyticsGallamine TriethiodidePirenzepineAtropineCholinergic AgonistsReceptors, NicotinicReceptors, CholinergicCholinergic AgentsMuscarineDiphenylacetic AcidsParasympathomimeticsThiadiazolesScopolamine Hydrobromidealpha7 Nicotinic Acetylcholine ReceptorPiperidinesOxotremorineMuscle, SmoothDose-Response Relationship, DrugRadioligand AssayScopolamine DerivativesGuinea PigsNicotinic AgonistsDioxolanesBethanecholBungarotoxinsCHO CellsNicotinic AntagonistsDicyclomineTorpedoPilocarpineMuscle ContractionMethacholine ChlorideBiperidenVesicular Acetylcholine Transport ProteinsIleumTracheaCricetinaeRats, Sprague-DawleyDopamine AgonistsPhysostigmineCalciumGTP-Binding ProteinsCholinergic FibersBinding, CompetitiveNicotineElectric StimulationMaltaCholinesterase InhibitorsQuinuclidinyl BenzilatePertussis ToxinGTP-Binding Protein alpha Subunits, Gq-G11Allosteric RegulationTropicamideParasympathetic Nervous SystemGTP-Binding Protein alpha Subunits, Gi-GoRats, WistarDrug AgonismMembrane PotentialsPhosphatidylinositolsTubocurarineGuanosine 5'-O-(3-Thiotriphosphate)CricetulusType C PhospholipasesNeuromuscular JunctionObidoxime ChlorideNeuronsKineticsPatch-Clamp TechniquesCells, CulturedVirulence Factors, BordetellaElectric OrganInositol PhosphatesTacrineIsoproterenolPropylbenzilylcholine MustardPyridinesMuscle RelaxationMecamylamineQuinuclidinesArecolineCholinergic AntagonistsAcetylcholinesteraseIsatinHeart AtriaMethacholine CompoundsBenztropineCholineSignal Transduction