NeurulationSpinal CordSpinal Cord InjuriesNeural Tube DefectsSpinal Cord DiseasesSpinal Cord CompressionSpinal Cord NeoplasmsNervous SystemNeural TubeSpinal Cord IschemiaInjections, SpinalParaplegiaGastrulaSpinal Nerve RootsCentral Nervous SystemSpinal NervesEmbryo, NonmammalianMotor NeuronsSpinal Cord RegenerationGene Expression Regulation, DevelopmentalEctodermChick EmbryoNeural CrestSpinal CanalMorphogenesisSpinal NeoplasmsCervical VertebraeAnesthesia, SpinalQuadriplegiaNotochordThoracic VertebraeSpinal DiseasesIn Situ HybridizationUmbilical CordPosterior Horn CellsLaminectomyRats, Sprague-DawleyXenopus ProteinsLumbosacral RegionRecovery of FunctionNerve RegenerationAxonsSpinal StenosisGanglia, SpinalNeuronsSpinal Cord StimulationLocomotionSpinal FusionSpinal InjuriesAnterior Horn CellsEmbryo, MammalianSpinal DysraphismBody PatterningZebrafishMyelitisNeuroepithelial CellsAmbystoma mexicanumCordotomyParalysisXenopus laevisXenopusGastrulationTime FactorsEmbryonic and Fetal DevelopmentZebrafish ProteinsMuscular Atrophy, SpinalPainMesodermTailMeningomyeloceleHyperalgesiaEmbryonic InductionRhombencephalonElectric Stimulation TherapyNeuralgiaChordataDisease Models, AnimalAmbystomaNeural PlateNerve Tissue ProteinsMyelographyBrainElectric StimulationSpineEpidural SpaceAfferent PathwaysUrinary Bladder, NeurogenicImmunohistochemistryCoturnixHematoma, Epidural, SpinalMicroscopy, Electron, ScanningHindlimbNeurons, AfferentHomeodomain ProteinsNociceptorsEctogenesisLumbar VertebraeReflexLampreysMotor Activity