Afferent PathwaysPainVisceral AfferentsVagus NerveVagotomyReflexUrinationNeurons, AfferentChronic PainPain ManagementCapsaicinThermoreceptorsPain ThresholdNeurons, EfferentUrinary BladderUrinary Bladder, OveractiveMeprobamateRats, Sprague-DawleyAutonomic PathwaysElectric StimulationSolitary NucleusPain, PostoperativeSensationLow Back PainBack PainPain MeasurementNociceptorsAbdominal PainNeck PainPain, IntractableDecerebrate StatePhysical StimulationMechanoreceptorsStomachSpinal CordEfferent PathwaysCatsNerve Fibers, UnmyelinatedPain PerceptionNeuronsSensory Receptor CellsNeural PathwaysPelvic PainAction PotentialsGastrointestinal MotilityFacial PainMedulla OblongataDenervationAcute PainPain, ReferredExcitatory Postsynaptic PotentialsNeural InhibitionPressoreceptorsSynaptic TransmissionEvoked PotentialsMuscle ContractionReaction TimeSynapsesSensory ThresholdsPressureShoulder PainNerve FibersMusculoskeletal PainGanglia, SpinalElectrophysiologyAtropineTime FactorsElectromyographyMotor NeuronsSympathetic Nervous SystemAnalgesicsBrainNeuralgiaNociceptive PainAnalgesics, OpioidHyperalgesiaChronic DiseaseMyofascial Pain SyndromesVisceral PainComplex Regional Pain SyndromesAnalgesiaArthralgiaLabor PainTreatment OutcomeCells, CulturedDose-Response Relationship, DrugSignal TransductionAnesthetics, LocalCatastrophizationAnalysis of VarianceFibromyalgiaMorphineQuestionnairesPatch-Clamp TechniquesDisability EvaluationFlank PainDouble-Blind MethodProspective StudiesEye PainAntigenic Modulation