Cisterna MagnaMedulla OblongataCerebellumPiloerectionFourth VentricleDandy-Walker SyndromeVasospasm, IntracranialSubarachnoid SpaceBrain StemBrainParaparesis, SpasticLateral Medullary SyndromeThermoreceptorsBasilar ArterySubarachnoid HemorrhageForamen MagnumKidney MedullaProlactin-Releasing HormoneSpinal CordPlatybasiaReticulumCatsCerebral VentriclesMagnetic Resonance ImagingArnold-Chiari MalformationAutonomic PathwaysCerebrospinal FluidInjections, IntraventricularSolitary NucleusRats, Sprague-DawleyInjections, SpinalSeptum of BrainHypothalamusEchoencephalographyIntracranial PressureSyringomyeliaBlood PressureRespirationCranial Fossa, PosteriorReticular FormationNeuronsInjectionsGolgi ApparatusChemoreceptor CellsRats, Inbred StrainsVagus NerveBrain ChemistryRats, WistarUltrasonography, PrenatalSudden Infant DeathGerminomaImmunohistochemistryFetal DiseasesScrapiePressoreceptorsCatecholaminesTime FactorsPonsHeart RateProto-Oncogene Proteins c-fosDogsPurkinje CellsNeural PathwaysHydrocephalusNorepinephrineFasciolidaeAneurysm, RupturedCentral Nervous SystemSympathetic Nervous SystemRabbitsRats, Inbred WKYMicroscopy, ElectronPregnancy Trimester, SecondSerotoninTissue DistributionCarbon DioxideCerebral ArteriesDisease Models, AnimalCerebrovascular CirculationBrain NeoplasmsSheepRats, Inbred SHRCerebellar CortexCerebellar DiseasesRNA, Messenger