Spinal CordMotor NeuronsSpinal Cord InjuriesMotor CortexSpinal NervesEvoked Potentials, MotorMotor ActivityMuscular Atrophy, SpinalSpinal Nerve RootsAxonsAmyotrophic Lateral SclerosisInjections, SpinalSpinal Cord DiseasesAnesthesia, SpinalMolecular Motor ProteinsElectromyographyLumbosacral RegionSpinal Cord NeoplasmsEfferent PathwaysSpinal CanalAnterior Horn CellsSpinal Cord CompressionReflex, MonosynapticSpinal DiseasesChick EmbryoSpineNeuropilin-2Spinal NeoplasmsGrowth ConesMotor Neuron DiseaseNerve Tissue ProteinsPyramidal TractsBulbar Palsy, ProgressivePiperoxanParalysisSpinal StenosisSurvival of Motor Neuron 1 ProteinHindlimbInterneuronsLocomotionSpinal FusionMuscle, SkeletalRats, Sprague-DawleyNerve DegenerationNeurofilament ProteinsDisease Models, AnimalElectric StimulationSemaphorinsSciatic NerveAcanthopanaxZebrafishMotor Skills DisordersLIM-Homeodomain ProteinsMovementSpinal InjuriesAnimals, NewbornNeural PathwaysGene Expression Regulation, DevelopmentalMice, TransgenicNerve Growth FactorsNeuronsSpinal Cord IschemiaGanglia, SpinalAction PotentialsExtremitiesTime FactorsImmunohistochemistryParaplegiaAnalysis of VarianceCell DifferentiationNeurogenesisSuperoxide DismutaseSynaptic TransmissionThoracic VertebraePsychomotor PerformanceHomeodomain ProteinsDendritesTuberculosis, SpinalElectrophysiologyLaminectomyCervical VertebraeRecovery of FunctionSpinal CurvaturesHematoma, Epidural, SpinalPosterior Horn CellsEmbryonic Stem CellsKinesinCells, CulturedLumbar VertebraeGreen Fluorescent ProteinsZebrafish ProteinsMovement DisordersSurvival of Motor Neuron 2 ProteinSpinal Muscular Atrophies of ChildhoodQuadriplegiaIn Situ HybridizationMice, Inbred C57BLEmbryo, MammalianTranscription FactorsSignal Transduction