Raphe NucleiPeptostreptococcusBrain StemPeptococcusThermoreceptorsSerotoninReticular FormationPeriaqueductal GrayMedulla OblongataNeuronsPhysical StimulationAfferent PathwaysEnkephalin, Ala(2)-MePhe(4)-Gly(5)-Periapical AbscessMorphineMicroinjectionsRats, Sprague-DawleyPainSpinal CordSuppurationElectric StimulationHot TemperatureAnalgesics, OpioidAction PotentialsNeural PathwaysSexologyPsychoanalysisSerotonergic NeuronsTryptophan HydroxylaseBacteria, AnaerobicCats8-Hydroxy-2-(di-n-propylamino)tetralinAxonsWheat Germ Agglutinin-Horseradish Peroxidase ConjugateGram-Positive Bacterial InfectionsReceptor, Serotonin, 5-HT1AEfferent PathwaysSuperior ColliculiProto-Oncogene Proteins c-fosStilbamidinesReceptors, Serotonin, 5-HT1ThalamusSerotonin Receptor AgonistsProjectionNeuronal Tract-TracersReceptors, SerotoninRats, WistarHorseradish PeroxidaseVisual PathwaysPons5,7-DihydroxytryptamineDental PlaqueAbscessSerotonin AntagonistsPeriodontitisAutoreceptorsAxonal TransportLocus CoeruleusOlfactory PathwaysSynaptic TransmissionVesicular Glutamate Transport Protein 2Thalamic NucleiNeurons, AfferentBrain MappingCerebral CortexImage Processing, Computer-AssistedInterneuronsMesencephalonPhantoms, ImagingBiotinImaging, Three-DimensionalNeural InhibitionSerotonin 5-HT1 Receptor AntagonistsGeniculate BodiesDextransBrainBehavior, AnimalTegmentum MesencephaliMotor NeuronsMediodorsal Thalamic NucleusSerotonin AgentsImmunohistochemistryAuditory PathwaysCorpus StriatumCone-Beam Computed TomographySerotonin 5-HT1 Receptor AgonistsRadiographic Image EnhancementSpecies Specificitygamma-Aminobutyric AcidElectrophysiologyDendritesAmygdalaMicrodialysisRetinaForecastingSerotonin Plasma Membrane Transport ProteinsNerve NetAnimals, NewbornVesicular Glutamate Transport ProteinsSynapses