AtropineReceptors, MuscarinicMuscarinic AntagonistsMuscarinic AgonistsReceptor, Muscarinic M3Receptor, Muscarinic M1Receptor, Muscarinic M4CarbacholParasympatholyticsN-MethylscopolamineParasympathomimeticsAcetylcholineMuscarineCholinergic AgonistsAtropine DerivativesDiaminesGallamine TriethiodideBethanecholScopolamine HydrobromideParasympathetic Nervous SystemScopolamine DerivativesCholinergic AgentsMuscle, SmoothPhysostigmineHexamethonium CompoundsGuinea PigsMethacholine CompoundsPilocarpineBenzilatesMuscle ContractionVagus NerveBethanechol CompoundsPropylbenzilylcholine MustardReceptors, CholinergicArecolineElectric StimulationIleumQuinuclidinesCholinesterase InhibitorsDicyclominePiperidinesGlycopyrrolateNeostigminePralidoxime CompoundsDose-Response Relationship, DrugCholinergic FibersCholinergic AntagonistsUrinary BladderSalivationTracheaRadioligand AssayDexetimideThiadiazolesMydriaticsCalciumAutonomic AgentsGTP-Binding ProteinsPropranololHeart RateOrganophosphate PoisoningMecamylamineTropicamideParotid GlandMethacholine ChlorideTropanesNicotinic AntagonistsPirenzepineTetrodotoxinVagotomyInositol PhosphatesMembrane PotentialsPhentolamineCHO CellsRats, Sprague-DawleyGuanethidineDogsPhosphatidylinositolsSomanAlcuroniumHeart AtriaCholinesterase ReactivatorsBradycardiaIsoproterenolHeartDimethylphenylpiperazinium IodideGastrointestinal MotilityRats, WistarDioxolanesTrihexyphenidylAutonomic Nervous SystemCricetinaeReceptors, NicotinicPertussis ToxinBinding, CompetitiveGuanosine 5'-O-(3-Thiotriphosphate)NorepinephrineNeuronsMuscle RelaxationNicotineHistamine