all, anatomical, anatomically, arachnoid, away, back, backbone, backs, body, bone, bones, bowl, cauda, caudal, cerebro-spinal, cerebrospinal, column, columns, conus, cord, cords, covering, coverings, csf, cut, cut-away, disc, discs, disk, disks, dura, dural, epidural, equina, fluid, inter-vertebral, intrathecal, layer, layers, ligament, ligaments, low, lower, lumbar, lumbosacral, mater, medical, meningeal, meninges, meninx, nerve, nerves, pelves, pelvic, pelvis, pelvus, region, sacral, sacrum, shown, space, spinal, spine, spines, spinous, vertebra, vertebrae, vertebral