Myenteric PlexusSubmucous PlexusChoroid PlexusIleumEnteric Nervous SystemBrachial PlexusGuinea PigsNitrergic NeuronsGastrointestinal MotilityColonInterstitial Cells of CajalMuscle, SmoothCholine O-AcetyltransferaseNADPH DehydrogenaseIntestine, SmallVasoactive Intestinal PeptideHexamethoniumColon, DescendingNeuronsExocrine GlandsCalbindin 2GangliaStomachMegacolonDissectionSubstance PAcetylcholineElectric StimulationCalbindinsS100 Calcium Binding Protein GChoroid Plexus NeoplasmsTetrodotoxinDihydrolipoamide DehydrogenaseEsophageal AchalasiaIntestinal MucosaCeliac PlexusEsophagusLumbosacral PlexusCervical PlexusImmunohistochemistryJejunumIntestinal Pseudo-ObstructionDimethylphenylpiperazinium IodideAtropineMorphinansEnkephalin, MethioninePyloric AntrumMuscle ContractionGanglia, AutonomicSerotoninNaloxoneReceptors, Serotonin, 5-HT4Serotonin 5-HT4 Receptor AgonistsHirschsprung DiseaseIntestinesNitric Oxide Synthase Type IUbiquitin ThiolesteraseVagus NervePeristalsisGastric FundusDigestive SystemGastric MucosaPyloric StenosisReceptors, OpioidDuodenumHexamethonium CompoundsEndoscopy, GastrointestinalGastrointestinal TractParasympatholyticsMucous MembraneNitric Oxide SynthaseGastroscopyPapilloma, Choroid PlexusSynaptic TransmissionAction PotentialsNarcotic AntagonistsRectumPylorusQuinacrineElectrophysiologySomatostatinGanglionic BlockersTracheaCell CountMorphineProto-Oncogene Proteins c-kitPiperidinesRats, Sprague-DawleyParasympathetic Nervous SystemHypogastric PlexusColitisSynapsesNeurotransmitter AgentsScopolamine HydrobromideProtein Deficiency