Jugular VeinsCatheterization, Central VenousSubclavian VeinGlomus JugulareCranial SinusesCatheters, IndwellingBrachiocephalic VeinsOccipital BoneAccessory NerveSheepVenous PressureCerebral VeinsPetrous BoneFusobacterium InfectionsCentral Venous PressureLemierre SyndromeFusobacterium necrophorumPhlebographyVeinsVenous ValvesNodose GanglionEstrusProgesteroneUpper Extremity Deep Vein ThrombosisNeckAmnesia, Transient GlobalFemoral VeinLuteinizing HormoneValsalva ManeuverThrombophlebitisSkull BaseSwineCatheterizationVena Cava, SuperiorVenae CavaeCerebrovascular CirculationCattleTemporal BoneVenous ThrombosisAxillary VeinVagus Nerve DiseasesGlossopharyngeal NerveDilatation, PathologicCatheterization, PeripheralCentral Venous CathetersCarotid ArteriesOxytocinDinoprostCranial Nerve DiseasesCranial Nerve NeoplasmsPregnancy, AnimalBlood Gas Analysis