MecamylamineReceptors, CholinergicNicotinic AntagonistsReceptors, MuscarinicReceptors, NicotinicNicotineMuscarinic AntagonistsQuinuclidinyl BenzilateNicotinic AgonistsScopolamine HydrobromideCholinergic AntagonistsCarbacholParasympathomimeticsAtropineCholinergic AgonistsAcetylcholineDihydro-beta-ErythroidineCholinergic AgentsMuscarinic AgonistsN-MethylscopolamineHexamethonium CompoundsChlorisondamineDexetimideReceptor, Muscarinic M1alpha7 Nicotinic Acetylcholine ReceptorPhysostigmineCholinesterase InhibitorsOxotremorineDecamethonium CompoundsCholinergic FibersAconitineTubocurarineGanglionic BlockersParasympatholyticsBungarotoxinsHexamethoniumAzocinesReceptor, Muscarinic M3Scopolamine DerivativesPirenzepinePropylbenzilylcholine MustardDimethylphenylpiperazinium IodidePempidineDose-Response Relationship, DrugArecolineQuinuclidinesReceptor, Muscarinic M2BenzilatesRats, Sprague-DawleyQuinolizinesGanglionic StimulantsNeostigminePentolinium TartrateReceptor, Muscarinic M4TetraisopropylpyrophosphamideBinding, CompetitiveNeuronsAtropine DerivativesButoxamineElectric OrganParasympathetic Nervous SystemBicyclo Compounds, HeterocyclicSubstance Withdrawal SyndromeGlycopyrrolateElectrophysiologyBrainTritiumMuscarineCalciumAcetylcholinesteraseParathionSynaptic TransmissionPharmacologyElectric StimulationReceptors, AdrenergicPyridinesCholine O-AcetyltransferaseHippocampusReceptor, Muscarinic M5AutoradiographyRats, WistarGuinea PigsReceptors, Adrenergic, betaMembrane PotentialsCholinergic NeuronsAction PotentialsReceptors, Adrenergic, alphaPilocarpineTobacco Use DisorderHair Cells, Auditory, InnerMemoryBehavior, AnimalNorepinephrineSynapsesKineticsMethyltyrosinesGalantamineSelf StimulationCarotid BodyHair Cells, Auditory, Outer