Muscarinic AntagonistsReceptors, MuscarinicAcetylcholineReceptors, NicotinicMuscarinic AgonistsReceptors, CholinergicReceptor, Muscarinic M1Receptor, Muscarinic M3alpha7 Nicotinic Acetylcholine ReceptorParasympatholyticsPirenzepineCarbacholN-MethylscopolamineAtropineNicotinic AntagonistsParasympathomimeticsBungarotoxinsReceptor, Muscarinic M4Quinuclidinyl BenzilateTorpedoScopolamine DerivativesScopolamine HydrobromideGlycopyrrolateNicotinic AgonistsOxotremorineCholinergic AgonistsGallamine TriethiodideCholinergic AgentsMuscarineDiaminesNicotineReceptor, Muscarinic M2Propylbenzilylcholine MustardCholinergic AntagonistsMecamylamineElectric OrganTropanesDose-Response Relationship, DrugBenzilatesQuinuclidinesArecolineDicyclominePiperidinesMyasthenia GravisTubocurarineNeuromuscular JunctionGuinea PigsCholinesterase InhibitorsPilocarpinePhysostigmineAconitineRats, Sprague-DawleyConotoxinsParasympathetic Nervous SystemRadioligand AssayBinding, CompetitiveAzocinesCobra Neurotoxin ProteinsMusclesAgrinHexamethonium CompoundsCholinergic FibersMuscle ContractionHexamethoniumNeuronsMuscle, SmoothAtropine DerivativesBicyclo Compounds, HeterocyclicElectric StimulationDihydro-beta-ErythroidineSomanCalciumMembrane PotentialsIleumVesicular Acetylcholine Transport ProteinsQuinolizinesTupaiidaeSynaptic TransmissionElectrophysiologyRats, WistarKineticsSarinMotor EndplateAmphibian VenomsCells, CulturedPyridinesPhenylpropanolamineXenopus laevisAcetylcholinesteraseBronchodilator AgentsAdrenergic beta-2 Receptor AgonistsPatch-Clamp TechniquesTime FactorsElectrophorusMuscle DenervationSynaptic MembranesTracheaMyasthenic Syndromes, CongenitalDrug InteractionsCholine