Nodose GanglionNeurons, AfferentVagus NerveCholecystokininReceptor, Cholecystokinin AVagus Nerve DiseasesProglumideReceptors, Neuropeptide YNeuronsStomachRats, Sprague-DawleyGanglia, SpinalCells, CulturedCapsaicinMotor NeuronsAction PotentialsAfferent PathwaysSensory Receptor CellsSensory System AgentsTRPV Cation ChannelsNociceptorsCalcitonin Gene-Related PeptidePatch-Clamp TechniquesElectrophysiologyMechanoreceptorsPhysical StimulationSubstance PElectric StimulationNerve Fibers, UnmyelinatedVisceral AfferentsSpinal CordLateral Line SystemTrigeminal GanglionAxonsTetrodotoxinMembrane PotentialsDopaminergic NeuronsNeurons, EfferentSynaptic TransmissionSynapsesHyperalgesiaRats, WistarImmunohistochemistryStilbamidinesNerve Tissue ProteinsGABAergic NeuronsAxotomyNeuropeptidesReceptors, Purinergic P2X3Brain StemHippocampus