Third VentricleCerebral Ventricle NeoplasmsCerebral VentriclesCerebral VentriculographyColloid CystsHeart VentriclesVentriculostomyEpendymaHydrocephalusInjections, IntraventricularHypothalamusCerebral AqueductCraniopharyngiomaLateral VentriclesPneumoencephalographyChoroid Plexus NeoplasmsNeuroendoscopyMedian EminenceSeptum PellucidumFourth VentricleVentriculoperitoneal ShuntHypothalamus, AnteriorNeurosurgical ProceduresMicrosurgeryPreoptic AreaMagnetic Resonance ImagingCystsBrain DiseasesCraniotomyDrinkingHypothalamic NeoplasmsThirstCerebrospinal FluidHerniaBrainChoroid PlexusTranylcypromineTomography, X-Ray ComputedColloidsBrain Tissue TransplantationBody TemperatureStereotaxic TechniquesVentricular FunctionPineal GlandCorpus CallosumAnorexiaDrinking BehaviorGonadotropin-Releasing HormoneArcuate NucleusSaline Solution, HypertonicMyocardiumRats, Inbred StrainsHeartHyperphagiaRats, Sprague-DawleyRats, WistarEatingNeurons