ReflexVasoconstrictionForearmRegional Blood FlowReflex, StretchReflex, AbnormalVasoconstrictor AgentsVascular ResistanceReflex, AcousticReflex, Vestibulo-OcularBlood PressureReflex, PupillaryPulmonary CirculationAnoxiaSympathetic Nervous SystemNorepinephrineVasodilationPulmonary ArteryPhenylephrineArteriolesSkin TemperatureVasomotor SystemEndothelin-1ShiveringHemodynamicsRenal CirculationHeart RateMesenteric ArteriesBody Temperature RegulationDogsAdrenergic alpha-AgonistsDecerebrate StateElectric StimulationVasodilator AgentsElectromyographyRats, Sprague-DawleyMuscle, Smooth, VascularReceptors, EndothelinAdrenergic alpha-1 Receptor AgonistsNitric OxideDose-Response Relationship, DrugAdrenergic alpha-AntagonistsPerfusionEndothelinsReceptor, Endothelin AArteriesMuscle ContractionCatsAngiotensin IING-Nitroarginine Methyl EsterPressoreceptors15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidReceptors, Adrenergic, alphaReceptor, Endothelin BH-ReflexMethoxamineReflex, RightingHeadache Disorders, PrimaryTyramineMuscle, SkeletalCoronary VesselsGaggingPrazosinSplanchnic CirculationReflex, OculocardiacRats, WistarEndothelium, VascularHindlimbSkinViper VenomsVagus NervePhentolamineMicrocirculationKidneyNitric Oxide SynthaseAnesthesiaBaroreflexReflex, BabinskiBlinkingMuscle TonusNitroprussidePeptides, CyclicLaser-Doppler FlowmetryReflex, AbdominalCold TemperatureLower Body Negative PressureMeclofenamic AcidOxygenAcetylcholineEnzyme InhibitorsCarotid SinusCardiac OutputPropranololPotassium ChlorideTailMechanoreceptorsReceptors, Adrenergic, alpha-1Afferent PathwaysNeurons, AfferentLung