Basilar ArteryEndothelium, VascularMuscle ContractionVasodilationAcetylcholineMuscle RelaxationVasodilator AgentsCalciumNitroglycerinArteriesNitroprussideNitric OxideVasoconstrictionEndotheliumVasoconstrictor AgentsBrachial ArteryMuscle, Smooth, VascularRegional Blood FlowDose-Response Relationship, DrugNitric Oxide SynthaseVertebrobasilar InsufficiencyEndothelium, CornealCerebral ArteriesIsometric ContractionMesenteric ArteriesPulmonary ArteryVertebral ArteryReceptors, NicotinicRabbitsReceptors, CholinergicCarotid ArteriesMuscle, SmoothPotassium ChlorideDogsCells, CulturedMyocardial ContractionAorta, ThoracicTime FactorsRenal ArteryFemoral Arteryalpha7 Nicotinic Acetylcholine ReceptorNitroarginineRats, Sprague-DawleySubarachnoid HemorrhageCoronary VesselsSerotoninEnzyme InhibitorsBrain Stem InfarctionsGuinea PigsUterine ContractionElectric StimulationNorepinephrineAortaVasospasm, IntracranialRats, WistarBiological FactorsCerebral AngiographyIndomethacinNG-Nitroarginine Methyl Ester15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidAtropineEndothelial CellsPhenylephrineBungarotoxinsBradykininMembrane PotentialsSignal TransductionCarbacholMuscle TonusReceptors, MuscarinicArginineEndothelium, LymphaticPapaverineMammary ArteriesSwineTorpedoCell AdhesionVasomotor SystemPotassiumIliac ArteryNitric Oxide Synthase Type IIIKineticsMice, Inbred C57BLCarotid Artery, InternalCyclic GMPHistamineMusclesRelaxationIntracranial AneurysmMuscle, SkeletalRats, Inbred WKYRelaxation TherapyMolecular Sequence DataCoronary Artery BypassRadial ArteryCerebrovascular CirculationVesicular Acetylcholine Transport ProteinsDisease Models, AnimalBlood PressureNicotinic Antagonists