healthy lumbar vertebrae. different views. labeled

spine vertebra lumbar vertebral body slipped disc bulging stenosis backage back pain spinal canal degenerative disk radiculopathy compression nerve root myelopathy apinal cord medical mri dermatome myotome physiotherapy diagnosis arthrosis ruptured prolapse herniated prolapsed pinched intervertebral nucleus pulposus annulus osteophytes spondylophytes osteoarthritis treatment lower operation medicine anatomy anatomical doc artwork blue black background osteoarthritic degeneration spondylosis exercise healthy vertebrae views labeled showing