Enteric Nervous SystemMyenteric PlexusHirschsprung DiseaseSubmucous PlexusNeural CrestCentral Nervous SystemNeurotransmitter AgentsNervous SystemGastrointestinal TractProto-Oncogene Proteins c-retGastrointestinal MotilityNeuronsDigestive SystemPeripheral Nervous SystemSOXE Transcription FactorsEndothelin-3NeurogliaGangliaIntestinesGlial Cell Line-Derived Neurotrophic FactorColonIleumVasoactive Intestinal PeptideGlial Cell Line-Derived Neurotrophic Factor ReceptorsQuailImmunohistochemistrySerotoninDigestive System Physiological PhenomenaMegacolonBrainSerotonin 5-HT4 Receptor AgonistsIntestine, SmallCentral Nervous System DiseasesVagus NerveGuinea PigsPeristalsisInterstitial Cells of CajalNeuropeptidesCell MovementIntestinal Pseudo-ObstructionNitrergic NeuronsChick EmbryoGene Expression Regulation, DevelopmentalNeurofilament ProteinsSynaptic TransmissionJejunumNerve Tissue ProteinsReceptor Protein-Tyrosine KinasesCholine O-AcetyltransferaseHigh Mobility Group ProteinsIleusStem CellsRats, Sprague-DawleyCeliac PlexusIntestine, LargeIn Situ HybridizationNerve Growth FactorsSympathetic Nervous SystemTetrodotoxinCentral Nervous System NeoplasmsNeurogenesisSubstance PReceptors, Serotonin, 5-HT4Autonomic Nervous SystemMice, TransgenicSignal TransductionMice, Inbred C57BLHexamethoniumMuscle, SmoothNervous System Physiological PhenomenaCoturnixTyrosine 3-MonooxygenaseUbiquitin Thiolesterasegamma-Aminobutyric AcidCells, CulturedStomachCell DifferentiationReceptor, Endothelin BManducaIntestinal MucosaNitric Oxide Synthase Type IGastrointestinal DiseasesNADPH DehydrogenaseCalbindin 2Mice, Mutant StrainsDopamineIrritable Bowel SyndromeAcetylcholineMice, KnockoutGanglia, AutonomicGastrointestinal TransitCell CountDrosophila ProteinsGlutamic AcidDisease Models, AnimalZebrafishElectric StimulationNorepinephrineAtropineNeurturin