Enteric Nervous SystemHirschsprung DiseaseMyenteric PlexusSubmucous PlexusNeural CrestCentral Nervous SystemNervous SystemGastrointestinal TractProto-Oncogene Proteins c-retGastrointestinal MotilityDigestive SystemPeripheral Nervous SystemSOXE Transcription FactorsEndothelin-3NeuronsNeurogliaGlial Cell Line-Derived Neurotrophic FactorGangliaIntestinesColonIleumGlial Cell Line-Derived Neurotrophic Factor ReceptorsQuailDigestive System Physiological PhenomenaMegacolonVasoactive Intestinal PeptideSerotonin 5-HT4 Receptor AgonistsImmunohistochemistryIntestine, SmallCentral Nervous System DiseasesPeristalsisVagus NerveInterstitial Cells of CajalGuinea PigsCell MovementIntestinal Pseudo-ObstructionNeurofilament ProteinsJejunumReceptor Protein-Tyrosine KinasesHigh Mobility Group ProteinsGene Expression Regulation, DevelopmentalChick EmbryoIleusCeliac PlexusIntestine, LargeNitrergic NeuronsStem CellsCentral Nervous System NeoplasmsBrainReceptors, Serotonin, 5-HT4In Situ HybridizationNeurotransmitter AgentsCoturnixUbiquitin ThiolesteraseNerve Tissue ProteinsNeurogenesisNerve Growth FactorsMice, TransgenicReceptor, Endothelin BCholine O-AcetyltransferaseManducaAutonomic Nervous SystemIntestinal MucosaGastrointestinal DiseasesHexamethoniumMice, Inbred C57BLStomachNADPH DehydrogenaseCalbindin 2Cell DifferentiationIrritable Bowel SyndromeTetrodotoxinGanglia, AutonomicSerotoninMuscle, SmoothGastrointestinal TransitSympathetic Nervous SystemMice, Mutant StrainsNervous System Physiological PhenomenaSignal TransductionZebrafishCell CountDrosophila ProteinsNeurturinGastroparesisNitric Oxide Synthase Type IMyoelectric Complex, MigratingCells, CulturedMice, KnockoutRats, Sprague-DawleyNeuropeptidesEmbryo, NonmammalianZebrafish ProteinsCentral Nervous System InfectionsTyrosine 3-MonooxygenaseDisease Models, AnimalGastric EmptyingSubstance PBody PatterningHu Paraneoplastic Encephalomyelitis Antigens