spinal cord. sections of vertebral column: cervical, thoracic, and lumber spine, sacrum and coccyx

anatomical anatomy atlas back backbone biology body bone bones care cervical chart chiropractic coccyx column cord correct curvature curve defect deformation deformity diagram disc disease education health herniated human illness illustration incorrect lateral lordosis lumbar man medical medicine names orthopedics pain people pose posture sacrum science scientific scoliosis shape silhouette skeleton spinal spine thoracic treatment vector vertebra vertebrae vertebral vertebras