CatecholaminesEpinephrineNorepinephrineAdrenal MedullaReceptors, CatecholamineChromaffin CellsChromaffin SystemDopamine beta-HydroxylaseAdrenal GlandsPheochromocytomaNormetanephrineVanilmandelic AcidTyrosine 3-MonooxygenaseDopamineChromaffin GranulesReserpineAdrenal Gland NeoplasmsPropranololIsoproterenolMetanephrineReceptors, AdrenergicSplanchnic NervesChromogranin APhenylethanolamine N-MethyltransferaseCatecholamine Plasma Membrane Transport ProteinsDihydroxyphenylalanineMethyltyrosinesPhentolaminealpha-MethyltyrosineChromograninsSympathetic Nervous SystemReceptors, Adrenergic, betaTyramineHydroxydopaminesPhenoxybenzamineHeart RateCattleAdrenergic beta-AntagonistsAdrenergic alpha-AntagonistsBlood PressureParaganglioma, Extra-AdrenalExocytosisVeratridineSympathomimeticsReceptors, Adrenergic, alphaAdrenergic beta-AgonistsHomovanillic AcidMonoamine OxidaseDimethylphenylpiperazinium IodidePC12 CellsNicotineAdrenergic alpha-AgonistsSympathectomy, ChemicalSympatholyticsAdrenalectomyCalciumDigitoninCatechol O-MethyltransferaseAdrenergic AgonistsMethoxyhydroxyphenylglycolAcetylcholineHydrocortisoneHemodynamicsDesipramineTime FactorsParagangliomaHexamethonium CompoundsAdrenergic FibersPerfusionStress, PhysiologicalDogsCyclic AMPPotassiumCatecholsDopa DecarboxylaseCatsElectrochemistryStimulation, ChemicalMonoamine Oxidase InhibitorsNorepinephrine Plasma Membrane Transport ProteinsPargylineHeartPhenylephrineYohimbineGlycolsReceptors, Adrenergic, beta-2Electric StimulationAdrenergic Uptake InhibitorsGanglionic BlockersClonidineAdrenergic AntagonistsDose-Response Relationship, DrugMyocardiumCells, CulturedNeurotransmitter AgentsAtropineTroutRats, Inbred StrainsPhenethylamines3-Iodobenzylguanidine