AcetylcholineReceptors, NicotinicReceptors, Cholinergicalpha7 Nicotinic Acetylcholine ReceptorBungarotoxinsTorpedoVesicular Acetylcholine Transport ProteinsReceptors, MuscarinicNicotinic AntagonistsNicotinic AgonistsElectric OrganAtropineNicotinePhysostigmineNeuromuscular JunctionCarbacholTubocurarineCholinergic AgentsMuscarinic AntagonistsCholineCholinesterase InhibitorsAcetylcholinesteraseReceptor, Muscarinic M2VasodilationMuscarinic AgonistsReceptor, Muscarinic M1Myasthenia GravisVasodilator AgentsReceptor, Muscarinic M3ParasympathomimeticsMotor EndplateMusclesMecamylamineCholine O-AcetyltransferaseAconitineNitroprussideDose-Response Relationship, DrugConotoxinsCholinergic AgonistsAzocinesParasympatholyticsOxotremorineCobra Neurotoxin ProteinsGuinea PigsParasympathetic Nervous SystemEndothelium, VascularQuinuclidinyl BenzilateAgrinMembrane PotentialsCholinergic FibersHexamethonium CompoundsMuscle ContractionN-MethylscopolamineElectric StimulationHemicholinium 3Dihydro-beta-ErythroidineCholinergic AntagonistsMuscle DenervationBicyclo Compounds, HeterocyclicScopolamine HydrobromideNeostigmineElectrophorusSynaptic TransmissionMuscle, SmoothQuinolizinesGallamine TriethiodideReceptor, Muscarinic M4IontophoresisNitric OxideNeuronsDecamethonium CompoundsPirenzepineCalciumNorepinephrineAmphibian VenomsDimethylphenylpiperazinium IodideSynaptic MembranesXenopus laevisIon ChannelsIleumElectrophysiologyRats, Sprague-DawleyCurareMuscarineMuscle RelaxationHexamethoniumNeurotransmitter AgentsMyasthenic Syndromes, CongenitalReceptor, Muscarinic M5KineticsGanglia, AutonomicMicrodialysisGanglia, ParasympatheticPotassiumPatch-Clamp TechniquesCholinesterasesNerve EndingsPiperidinesBiological FactorsOocytes