Neurotransmitter AgentsNorepinephrinePhenoxybenzamineNeurotransmitter Transport ProteinsTyramineEpinephrineElectric StimulationAdrenergic alpha-AntagonistsSynaptic TransmissionPhentolamineSerotoninReserpineDesipramineCatecholaminesReceptors, NeurotransmitterVas DeferensSympathetic Nervous SystemPlasma Membrane Neurotransmitter Transport ProteinsDopamineAdrenergic alpha-AgonistsSynaptic VesiclesReceptors, AdrenergicNeuronsPrazosinReceptors, Adrenergic, alphaYohimbineAcetylcholineHydroxydopaminesMetaraminolgamma-Aminobutyric AcidGlutamic AcidMuscle ContractionPropranololGuanethidineSympathomimeticsCalciumPresynaptic TerminalsSympatholyticsClonidineSynapsesGuinea PigsDose-Response Relationship, DrugSynaptosomesMethyltyrosinesReceptors, Adrenergic, alpha-2Nerve EndingsBrainNictitating MembraneRats, WistarMuscle, SmoothNeuromuscular JunctionBretylium CompoundsRats, Sprague-DawleyCatsReceptors, Adrenergic, alpha-1Nerve Tissue ProteinsIsoproterenolRats, Inbred StrainsExocytosisMethoxamineBiogenic MonoaminesAdrenergic Uptake InhibitorsMethoxyhydroxyphenylglycolMesenteric ArteriesIdazoxanRabbitsPotassiumAdrenergic alpha-2 Receptor AntagonistsDopamine beta-HydroxylaseDioxanesCocaineNorepinephrine Plasma Membrane Transport ProteinsSynapsinsMembrane PotentialsVasoconstrictionTetrodotoxinTime FactorsPargylineBrain ChemistryAtropineGABA Plasma Membrane Transport ProteinsSynaptotagmin INeurotransmitter Uptake InhibitorsElectrophysiologyTritiumHippocampusBiogenic AminesArteriesMuscle, Smooth, VascularAction PotentialsPatch-Clamp TechniquesReceptors, Adrenergic, betaHypothalamusDrug InteractionsQuinoxalinesPotassium ChlorideCholine O-AcetyltransferaseAdrenergic FibersVasoconstrictor AgentsNeuropeptide Y