HyperventilationHypocapniaCarbon DioxideAlkalosis, RespiratoryCerebrovascular CirculationHypercapniaCerebral ArteriesPartial PressureRespirationIntracranial PressureOxygenMiddle Cerebral ArteryBlood Gas AnalysisCerebral InfarctionAsthma, Exercise-InducedApneaBrainPulmonary VentilationBlood Flow VelocityRespiratory MechanicsAcid-Base EquilibriumCerebral PalsyAnoxiaTidal VolumeChemoreceptor CellsHyperoxiaTrimethaphanOxygen ConsumptionAcidosisBlood PressureAirway ResistancePulmonary Gas ExchangeDogsAltitudeNeurocirculatory AstheniaHypoventilationHydrochloric AcidPanicCerebral AngiographyNitrous OxideInfarction, Middle Cerebral ArteryBrain IschemiaMalaria, CerebralHypotension, ControlledHeart RateRitodrineIsofluraneCarotid BodyUltrasonography, Doppler, TranscranialCerebral VeinsRespiration, ArtificialAnesthesia, InhalationHydrogen-Ion ConcentrationBicarbonatesPanic DisorderHemodynamicsHomeostasisRegional Blood FlowMouth ProtectorsCerebral HemorrhageTime FactorsBlood VolumeAtropine DerivativesBlood Gas Monitoring, TranscutaneousPlethysmography, ImpedanceMethacholine CompoundsPia MaterIntracranial HypertensionArteriesAcclimatizationMagnetic Resonance ImagingNystagmus, PhysiologicAnesthesiaCerebrospinal FluidXenon RadioisotopesCold Temperature