HypercapniaCarbon DioxideAnoxiaChemoreceptor CellsRespirationAcidosis, RespiratoryHypocapniaPulmonary VentilationPartial PressureOxygenCerebrovascular CirculationRespiratory MechanicsBlood Gas AnalysisApneaAcidosisTidal VolumeAcid-Base EquilibriumCarotid BodyHyperoxiaPia MaterHyperventilationAsphyxiaHydrogen-Ion ConcentrationHypoventilationPlethysmography, Whole BodyPhrenic NerveDiaphragmRespiratory Physiological PhenomenaRespiration, ArtificialCerebral ArteriesRespiratory MusclesRespiratory InsufficiencyIntercostal MusclesAcetazolamideMedulla OblongataRespiratory CenterBlood PressureInsufflationBicarbonatesDoxapramBrain StemPulmonary Gas ExchangeAnimals, NewbornOxygen ConsumptionHeart RateCarbonic Anhydrase InhibitorsBlood Flow VelocitySodium CyanideObesity Hypoventilation SyndromePulmonary Stretch ReceptorsOximetryWakefulnessInhalationVagotomyRespiratory Function TestsRats, Sprague-DawleyVasodilation