Mesenteric ArteriesIleal DiseasesMesenteric Artery, SuperiorIntussusceptionMesenteric Artery, InferiorArteriesCecal DiseasesStrongyloideaColectomyIleitisAnastomosis, SurgicalColonic DiseasesIleumCrohn DiseaseMesenteric Vascular OcclusionCeliac ArterySuperior Mesenteric Artery SyndromeLaparoscopyPulmonary ArteryRenal ArteryCerebral ArteriesVasodilationMuscle, Smooth, VascularCarotid ArteriesVasoconstrictionFemoral ArteryTreatment OutcomeSplanchnic CirculationBasilar ArteryColonMesenteric VeinsBiological FactorsVasoconstrictor AgentsRecurrenceVasodilator AgentsIliac ArterySplenic ArteryVertebral ArteryEndothelium, VascularNorepinephrineCoronary Artery BypassHepatic ArteryCranial Fossa, PosteriorTomography, X-Ray ComputedPhenylephrineRadial ArteryRats, WistarMyographyMammary ArteriesCarotid Artery, InternalAcetylcholineSubclavian ArteryDuodenostomyRats, Sprague-DawleyAngiographyRats, Inbred WKYMuscle ContractionCarotid Artery DiseasesMuscle RelaxationCoronary VesselsTime FactorsDose-Response Relationship, DrugBlood PressureSuperior ColliculiNitric OxideBrachial ArteryVena Cava, SuperiorCarotid Artery, CommonEndothelium-Dependent Relaxing FactorsAneurysmMagnetic Resonance ImagingOphthalmic ArteryRats, Inbred SHRRegional Blood FlowRenal Artery ObstructionArterial Occlusive DiseasesDogsPotassium ChlorideCharybdotoxin15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidRabbitsConstriction, PathologicNG-Nitroarginine Methyl EsterStentsMiddle Cerebral ArteryPosterior Cerebral ArteryUmbilical ArteriesThoracic ArteriesUltrasonography, DopplerTemporal ArteriesRetrospective StudiesPopliteal ArteryIndomethacinHypertensionFollow-Up StudiesAortaPosterior Cruciate LigamentBronchial ArteriesAorta, ThoracicEnzyme Inhibitors