Carotid SinusCarotid ArteriesPressoreceptorsCarotid StenosisCranial SinusesMaxillary SinusCarotid Artery DiseasesCarotid BodyParanasal SinusesSinus of ValsalvaCavernous SinusSyncopeEndarterectomy, CarotidCarotid Artery, InternalFrontal SinusParanasal Sinus DiseasesSphenoid SinusChemoreceptor CellsMassageCoronary SinusSick Sinus SyndromeCarotid Artery, CommonSinus Thrombosis, IntracranialReflexEthmoid SinusCarotid Artery, ExternalBlood PressureDenervationDogsParanasal Sinus NeoplasmsBaroreflexTachycardia, SinusTilt-Table TestVagotomyHeart RateSyncope, VasovagalVagus NerveMaxillary Sinus NeoplasmsBradycardiaGlossopharyngeal NerveCarotid Artery ThrombosisPilonidal SinusSodium CyanideCarotid Artery InjuriesCatsTransverse SinusesCarotid Body TumorRespirationSuperior Sagittal SinusCarotid Intima-Media ThicknessHeart MassageSympathetic Nervous SystemNeurons, EfferentAutonomic DenervationVascular ResistancePhrenic NervePacemaker, ArtificialFludrocortisoneElectrocardiographySinoatrial NodeReflex, AbnormalEndarterectomyTunica IntimaChloraloseHeart SoundsTunica MediaCardiac Pacing, ArtificialAccidental FallsAnesthesiaCerebral AngiographyCerebral VeinsSinus Arrest, CardiacDizzinessTime FactorsTomography, X-Ray ComputedSyndromeCarotid Artery, Internal, DissectionCross CirculationHemodynamicsSympathectomyTreatment OutcomeNeckAtrial FibrillationVeratrineProspective StudiesCarbon DioxideElectric StimulationHeart AtriaPressureAnoxiaRabbitsEfferent PathwaysBlood CirculationAortaPetrosal Sinus SamplingMedulla OblongataAorta, ThoracicLateral Sinus ThrombosisAutonomic Nerve BlockUltrasonography, Doppler, Duplex