NorepinephrineNeuronsNorepinephrine Plasma Membrane Transport ProteinsNeurons, AfferentMotor NeuronsSympathetic Nervous SystemEpinephrineAction PotentialsCatecholaminesDopamineAdrenergic Uptake InhibitorsElectric StimulationDesipramineDopaminergic NeuronsAdrenergic alpha-AgonistsLocus CoeruleusDopamine beta-HydroxylaseSynaptic TransmissionCells, CulturedElectrophysiologyHippocampusPatch-Clamp TechniquesGABAergic NeuronsSynapsesRats, Sprague-DawleySerotoninNerve Tissue ProteinsAxonsGanglia, SpinalVasoconstrictor AgentsReceptors, Adrenergic, alphaCerebral CortexDose-Response Relationship, DrugRats, WistarBrainMembrane PotentialsTyrosine 3-MonooxygenaseSpinal CordAdrenergic alpha-AntagonistsAdrenergic NeuronsAnimals, Newborngamma-Aminobutyric AcidDendritesSensory Receptor CellsReceptors, AdrenergicTime FactorsNeural InhibitionNeurotransmitter AgentsOlfactory Receptor NeuronsBlood PressureCholinergic NeuronsReceptors, Adrenergic, alpha-2Medulla OblongataNeurons, EfferentAdrenergic FibersModels, NeurologicalCalciumCatsMotor Neuron DiseaseMethoxyhydroxyphenylglycolNeuropeptidesImmunohistochemistryTyraminePyramidal CellsAdrenergic AgentsExcitatory Postsynaptic PotentialsSympathomimeticsGanglia, SympatheticHeart RateMesencephalonInterneuronsBrain StemReceptors, Adrenergic, betaPhentolaminePropranololBiogenic MonoaminesGlutamic AcidVasoconstrictionTetrodotoxinBehavior, AnimalMice, Inbred C57BLDogsYohimbineRats, Inbred StrainsSerotonergic NeuronsPrazosinAdrenergic alpha-2 Receptor AntagonistsReceptors, Adrenergic, alpha-1Neuropeptide YNeurotransmitter Uptake InhibitorsAnalysis of VarianceAcetylcholineAfferent PathwaysMice, TransgenicNormetanephrineSuperior Cervical GanglionPotassiumClonidineMice, KnockoutPresynaptic Terminals