ArteriolesCapillariesElectrophoresis, CapillaryCapillary ActionPia MaterMicrocirculationVasodilationCapillary PermeabilityVenulesCapillary ResistanceRetinal ArteryHemangioma, CapillaryVasoconstrictionCapillary ElectrochromatographyEndothelium, VascularRetinal VesselsCapillary Leak SyndromeVasodilator AgentsMicroscopy, VideoCheekNitric OxideKidney GlomerulusRegional Blood FlowMuscle, Smooth, VascularRats, Sprague-DawleyCorrosion CastingMuscle, SkeletalJuxtaglomerular ApparatusCapillary FragilityCoronary VesselsBlood PressureVasomotor SystemVascular ResistanceNeovascularization, PhysiologicBlood Flow VelocityVasoconstrictor AgentsArteriesRenal CirculationCerebral ArteriesMesocricetusAcetylcholineNitroprussideNitroarginineNG-Nitroarginine Methyl EsterNitric Oxide SynthaseRats, WistarSwine, MiniatureMesoporphyrinsEnzyme InhibitorsKidneyMicrovesselsNitric Oxide Synthase Type IIIPerfusionPericytesOxygenMesenteryCapillary TubingHydronephrosisAdenosineSwineRats, Inbred WKYPulmonary CirculationIndomethacinDose-Response Relationship, DrugMuscle TonusGlycocalyxRetinal VeinRats, Inbred SHRBlood VesselsIschemiaEndotheliumMicroscopy, ElectronEndothelial CellsNorepinephrineHemodynamicsTime FactorsCoronary CirculationBradykininNailsRabbitsMicroscopic AngioscopySplanchnic CirculationStress, MechanicalDisease Models, AnimalPotassium ChlorideBrainModels, CardiovascularImmunohistochemistryHydrazines15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidAngiotensin IIRats, Inbred StrainsBasement MembraneHyperemiaVeinsVascular Endothelial Growth Factor AHypertensionMice, Inbred C57BLMicroscopy, Electron, ScanningDogs