Basilar ArteryEndothelium, VascularVasodilationMuscle RelaxationVasodilator AgentsAcetylcholineNitroglycerinArteriesNitroprussideNitric OxideVasoconstrictionEndotheliumBrachial ArteryVasoconstrictor AgentsMuscle, Smooth, VascularRegional Blood FlowNitric Oxide SynthaseDose-Response Relationship, DrugVertebrobasilar InsufficiencyEndothelium, CornealCerebral ArteriesVertebral ArteryPulmonary ArteryMesenteric ArteriesCarotid ArteriesSubarachnoid HemorrhageRabbitsBrain Stem InfarctionsMuscle ContractionFemoral ArteryRenal ArteryCells, CulturedCerebral AngiographyVasospasm, IntracranialDogsCoronary VesselsPotassium ChlorideNitroarginineAorta, ThoracicCalciumTime FactorsEnzyme InhibitorsEndothelial CellsEndothelium, LymphaticSerotoninAortaBiological FactorsRats, Sprague-DawleyIliac ArteryCell AdhesionCarotid Artery, InternalNG-Nitroarginine Methyl EsterMammary ArteriesIntracranial AneurysmIndomethacinRelaxationRelaxation TherapyCoronary Artery BypassRadial ArterySignal Transduction15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidCerebrovascular CirculationNitric Oxide Synthase Type IIISwinePapaverineArginineRats, WistarBradykininArterial Occlusive DiseasesNorepinephrineVasomotor SystemMice, Inbred C57BLCarotid Artery DiseasesMiddle Cerebral ArteryCyclic GMPMagnetic Resonance AngiographyMesenteric Artery, SuperiorDisease Models, AnimalSubclavian ArteryRats, Inbred WKYCharybdotoxinMuscle TonusSumatriptanPhenylephrineMuscle, SmoothMolecular Sequence DataKineticsTomography, X-Ray ComputedMethylene BlueCarotid Artery, CommonMice, KnockoutHepatic ArteryOxadiazolesPicolinesCell LineRNA, MessengerUmbilical VeinsSplenic ArteryBlood PressureNitric Oxide Donors