Solitary NucleusHypoglossal NerveHypoglossal Nerve InjuriesTasteTongueMedulla OblongataBrain StemHypoglossal Nerve DiseasesMotor NeuronsRespiratory CenterCell NucleusSerotoninRats, Sprague-DawleyRats, Inbred F344ImmunohistochemistryNucleus AccumbensLaryngeal NervesSolitary Pulmonary NoduleThalamic NucleiRaphe NucleiPhrenic NerveCranial Nerve DiseasesCranial NervesPharyngeal MusclesCochlear Nucleus