SerotoninAcetylcholineSerotonin Plasma Membrane Transport ProteinsReceptors, SerotoninReceptor, Serotonin, 5-HT2AReceptors, NicotinicReceptor, Serotonin, 5-HT1ASerotonin Uptake InhibitorsReceptors, CholinergicSerotonin Antagonistsalpha7 Nicotinic Acetylcholine ReceptorReceptor, Serotonin, 5-HT2CReceptor, Serotonin, 5-HT2BSerotonin AgentsReceptors, Serotonin, 5-HT2Serotonin Receptor AgonistsReceptor, Serotonin, 5-HT1BBungarotoxinsReceptors, Serotonin, 5-HT1TorpedoSerotonin SyndromeSerotonin 5-HT2 Receptor AntagonistsVesicular Acetylcholine Transport ProteinsReceptors, MuscarinicNicotinic AntagonistsReceptors, Serotonin, 5-HT3Serotonin 5-HT2 Receptor AgonistsReceptors, Serotonin, 5-HT4Tryptophan HydroxylaseNicotinic AgonistsSerotonin 5-HT1 Receptor AgonistsSerotonin 5-HT1 Receptor AntagonistsAtropineElectric OrganNicotineNeuromuscular JunctionPhysostigmineCarbacholCholinergic AgentsTubocurarineHydroxyindoleacetic AcidDose-Response Relationship, DrugMuscarinic AntagonistsFluoxetineCholinesterase InhibitorsKetanserinCholineAcetylcholinesteraseVasodilationSerotonergic NeuronsReceptor, Muscarinic M2Muscarinic AgonistsCitalopramVasodilator AgentsRaphe Nuclei5-HydroxytryptophanReceptor, Muscarinic M1Myasthenia GravisMethysergideNeuronsParasympathomimeticsReceptor, Muscarinic M3Rats, Sprague-DawleyMusclesMecamylamineCholine O-AcetyltransferaseMotor EndplateNitroprussideNorepinephrine8-Hydroxy-2-(di-n-propylamino)tetralinParoxetineAconitineMembrane PotentialsSynaptic TransmissionElectric StimulationBrainDopamineGuinea PigsFenclonineCholinergic AgonistsConotoxinsMicrodialysisMuscle ContractionParasympatholyticsNeurotransmitter AgentsEndothelium, Vascular5,7-DihydroxytryptamineAzocinesParasympathetic Nervous SystemReceptor, Serotonin, 5-HT1DOxotremorineBicyclo Compounds, HeterocyclicBiogenic MonoaminesCobra Neurotoxin ProteinsQuinuclidinyl BenzilateCholinergic FibersSerotonin 5-HT3 Receptor AntagonistsCalciumScopolamine HydrobromideIontophoresis