Mesenteric ArteriesMesenteric Artery, SuperiorHypertensionMesenteric Artery, InferiorArteriesHypertension, PulmonaryPulmonary ArteryMesenteric Vascular OcclusionCeliac ArteryBlood PressureSuperior Mesenteric Artery SyndromeRenal ArteryHypertension, PortalHypertension, RenalVasodilationMuscle, Smooth, VascularVasoconstrictionCerebral ArteriesCarotid ArteriesSplanchnic CirculationAntihypertensive AgentsFemoral ArteryHypertension, RenovascularVasodilator AgentsMesenteric VeinsSuperior ColliculiVasoconstrictor AgentsVena Cava, SuperiorBasilar ArteryEndothelium, VascularBiological FactorsRats, Inbred WKYNorepinephrineSplenic ArteryRats, Inbred SHRIliac ArteryHypertension, MalignantRats, Sprague-DawleyRats, WistarTreatment OutcomeTime FactorsPhenylephrineHepatic ArteryCoronary Artery BypassNitric OxideVertebral ArteryAcetylcholineTomography, X-Ray ComputedMyographyRadial ArteryDose-Response Relationship, DrugAngiographyRenal Artery ObstructionRisk FactorsMammary ArteriesVascular ResistanceDesoxycorticosteroneDuodenostomyCarotid Artery, InternalSubclavian ArteryCarotid Artery DiseasesHemodynamicsBrachial ArteryCoronary VesselsSuperior Vena Cava SyndromeMuscle ContractionMuscle RelaxationRegional Blood FlowFollow-Up StudiesEndothelium-Dependent Relaxing FactorsHypertension, Pregnancy-InducedCarotid Artery, CommonNG-Nitroarginine Methyl EsterProspective StudiesDisease Models, AnimalAngiotensin IIAortaAneurysmRetrospective StudiesDogsSympathetic Nervous SystemConstriction, PathologicNitric Oxide SynthasePotassium Chloride15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidEndothelin-1NitroprussideAorta, ThoracicStentsArterial Occlusive DiseasesSuperior Cervical GanglionOcular HypertensionEnzyme InhibitorsReninNitric Oxide Synthase Type IIIOphthalmic ArteryRabbitsKidneyUltrasonography, DopplerVasomotor System