Thromboxane A2Receptors, ThromboxaneReceptors, Thromboxane A2, Prostaglandin H2Vasoconstrictor AgentsThromboxanesThromboxane-A SynthaseVasoconstriction15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidProstaglandin Endoperoxides, SyntheticHydrazines6-Ketoprostaglandin F1 alphaProstaglandins HEpoprostenolReceptors, ProstaglandinProstaglandin H2ProstaglandinsPlatelet AggregationEndothelinsEndothelin-1Prostaglandin EndoperoxidesBlood PlateletsIndomethacinVascular ResistanceNorepinephrineMesenteric ArteriesBlood PressureCyclooxygenase InhibitorsPhenylephrineMuscle, Smooth, VascularRegional Blood FlowVasodilationEicosanoidsAngiotensin IIVasodilator AgentsVasomotor SystemArachidonic AcidsArachidonic AcidDose-Response Relationship, DrugReceptors, EndothelinProstaglandin-Endoperoxide SynthasesAspirinNitric OxideEndothelium, VascularSympathetic Nervous SystemDinoprostProstaglandins, SyntheticPentanoic AcidsProstaglandin AntagonistsProstanoic AcidsCyclooxygenase 1Renal CirculationMethacrylatesProstaglandins EMethoxamineArteriolesDogsImidazolesSerotoninArteriesHemodynamicsReceptor, Endothelin APulmonary CirculationPerfusionProstaglandins FBenzoxepinsForearmRats, Sprague-DawleyNG-Nitroarginine Methyl EsterPotassium ChlorideDinoprostoneEnzyme InhibitorsTyramineProstaglandins DHydroxyeicosatetraenoic AcidsBiphenyl CompoundsNitroprussideRabbitsRats, WistarAcetylcholineSRS-AReceptor, Endothelin BIsoprostanesCoronary VesselsNitric Oxide SynthaseMuscle TonusRenal ArterySplanchnic CirculationUrotensinsAdrenergic alpha-AgonistsCyclooxygenase 2Pulmonary ArteryKidneyMuscle ContractionSulfonamidesAortaBleeding TimePlatelet Aggregation InhibitorsAorta, ThoracicBlood VesselsRats, Inbred Strains