Anesthesia, SpinalBupivacaineMeningismAnesthetics, LocalAnesthesia, ObstetricalSpinal CordNerve BlockCesarean SectionSpinal Cord InjuriesJuvenile HormonesDouble-Blind MethodInjections, SpinalSpinal NervesSpinal Cord DiseasesSpinal Nerve RootsSpinal Cord NeoplasmsSpinal CanalSpinal DiseasesSpinal Cord CompressionSpinal NeoplasmsSpinal StenosisHeart BlockReceptors, NotchSpinal FusionSpinal InjuriesMuscular Atrophy, SpinalNerve Tissue ProteinsGanglia, SpinalSpinal Cord IschemiaDrosophila ProteinsMotor NeuronsAsymmetric Cell DivisionMembrane ProteinsParaplegiaThoracic VertebraeSpineTuberculosis, SpinalLaminectomySpinal CurvaturesHematoma, Epidural, SpinalPosterior Horn CellsDrosophilaCervical VertebraeLumbosacral RegionNeuronsRats, Sprague-DawleyLumbar VertebraeSpinal Muscular Atrophies of ChildhoodReceptor, Notch1Adaptor Protein Complex alpha SubunitsSpinal FracturesSpinal Cord RegenerationPainHyperalgesiaQuadriplegiaBundle-Branch BlockSense OrgansHypesthesiaTrigeminal Nucleus, SpinalManipulation, Spinal