Growth ConesNerve RegenerationDecapodiformesNeuronsAxonal TransportMotor NeuronsMyelin SheathNerve Tissue ProteinsOptic NerveSpinal CordRetinal Ganglion CellsPlay and PlaythingsSchwann CellsOptic ChiasmDendritesNeural ConductionCells, CulturedNeuritesSemaphorinsWallerian DegenerationSemaphorin-3ACentral Nervous SystemNeurons, AfferentSynapsesGanglia, SpinalGene Expression Regulation, DevelopmentalPeripheral NervesNerve Growth FactorsRetinaAction PotentialsSuperior ColliculiRats, Sprague-DawleyNerve Fibers, MyelinatedNeurogliaSensory Receptor CellsMicroscopy, ElectronSignal TransductionGAP-43 ProteinAxotomyChick EmbryoMolecular Sequence DataAnimals, Genetically ModifiedVisual PathwaysPresynaptic TerminalsRanvier's NodesNervous SystemHorseradish PeroxidaseNerve CrushAnimals, NewbornMice, Inbred C57BLTime FactorsGreen Fluorescent ProteinsMutationNerve DegenerationCatsZebrafishMice, KnockoutElectric StimulationImmunohistochemistryDrosophilaNeuropilin-1DiencephalonContactin 2Olfactory NerveCerebral CortexOlfactory BulbMice, TransgenicSpinal Nerve RootsPeripheral Nervous SystemDrosophila ProteinsAmino Acid SequenceAstacoideaThalamusNerve EndingsMolluscaEmbryo, NonmammalianBrainRNA, MessengerReceptors, Eph FamilyEphrin-A2HippocampusMyelin ProteinsInterneuronsPyramidal TractsSynaptic TransmissionIn Situ HybridizationOligodendrogliaElectrophysiologyEphrin-A5Cell MovementMembrane ProteinsMembrane PotentialsOlfactory PathwaysMicrotubulesFasciculationEmbryo, MammalianModels, NeurologicalMicroscopy, ConfocalSpinal Cord InjuriesAfferent Pathways