Carotid SinusSinoatrial NodeSick Sinus SyndromeCoronary VesselsCarotid ArteriesPressoreceptorsCarotid StenosisCarotid Artery DiseasesCranial SinusesCoronary AngiographyMaxillary SinusCarotid BodySinus of ValsalvaSyncopeParanasal SinusesCavernous SinusCoronary Artery DiseaseSinoatrial BlockLymph NodesCoronary CirculationEndarterectomy, CarotidArrhythmia, SinusCarotid Artery, InternalTachycardia, SinusFrontal SinusParanasal Sinus DiseasesSphenoid SinusBradycardiaDogsAngioplasty, Balloon, CoronaryChemoreceptor CellsCardiac Pacing, ArtificialMassageCoronary SinusReflexElectrocardiographyAtrioventricular NodePacemaker, ArtificialCarotid Artery, CommonCoronary StenosisHeart RateBlood PressureCoronary Artery BypassSinus Thrombosis, IntracranialCarotid Artery, ExternalEthmoid SinusDenervationCoronary DiseaseHeart AtriaBaroreflexHeart Conduction SystemVagus NerveCoronary VasospasmParanasal Sinus NeoplasmsHeart BlockTime FactorsTreatment OutcomeSinus Arrest, CardiacVagotomyTilt-Table TestAtrial FibrillationProspective StudiesFollow-Up StudiesCoronary AneurysmSyncope, VasovagalHeartArrhythmias, CardiacMaxillary Sinus NeoplasmsRisk FactorsAtrial SeptumAutonomic Nerve BlockVascular ResistanceCoronary ThrombosisHemodynamicsCarotid Artery ThrombosisGlossopharyngeal NerveMyocardial InfarctionPilonidal SinusSodium CyanideSympathetic Nervous SystemCatsCarotid Artery InjuriesTomography, X-Ray ComputedStentsTransverse SinusesRespirationCoronary RestenosisCarotid Body TumorCarotid Intima-Media ThicknessRetrospective StudiesAtrioventricular BlockTunica IntimaHeart MassageSuperior Sagittal SinusCatheter AblationCoronary OcclusionRabbitsLymph Node ExcisionNeurons, EfferentTachycardia