Myenteric PlexusChoroid PlexusSubmucous PlexusIleumEnteric Nervous SystemBrachial PlexusGuinea PigsMuscle, SmoothGastrointestinal MotilityInterstitial Cells of CajalColonNitrergic NeuronsIntestine, SmallNADPH DehydrogenaseIntestinal Pseudo-ObstructionVasoactive Intestinal PeptideEsophagusCholine O-AcetyltransferaseIleusMegacolonStomachMuscle ContractionHexamethoniumNeuronsSubstance PJejunumElectric StimulationDimethylphenylpiperazinium IodideGangliaAcetylcholineIntestinal MucosaColon, DescendingCalbindin 2TetrodotoxinImmunohistochemistryChoroid Plexus NeoplasmsCalbindinsDihydrolipoamide DehydrogenaseS100 Calcium Binding Protein GEsophageal AchalasiaCeliac PlexusLumbosacral PlexusCervical PlexusPyloric AntrumDuodenumIntestinesDigestive SystemMorphinansAtropineGastrointestinal TractSerotoninGanglia, AutonomicNaloxoneReceptors, Serotonin, 5-HT4RectumEnkephalin, MethionineSerotonin 5-HT4 Receptor AgonistsNitric Oxide Synthase Type IPyloric StenosisReceptors, OpioidVagus NerveHexamethonium CompoundsRats, Inbred ACINitric Oxide SynthaseUbiquitin ThiolesteraseProto-Oncogene Proteins c-kitHirschsprung DiseasePeristalsisParasympatholyticsGastric FundusPapilloma, Choroid PlexusMucous MembraneRats, Sprague-DawleyNarcotic AntagonistsPylorusRats, WistarSynaptic TransmissionQuinacrineMuscle RelaxationAction PotentialsColitisEledoisinGanglionic BlockersMorphineGastric MucosaIntestine, LargeParasympathetic Nervous SystemElectrophysiologyHypogastric PlexusTrinitrobenzenesulfonic AcidScopolamine HydrobromideProtein DeficiencyPiperidines