neck bone - spinal stenosis medical concept as a degenerative illness in the human vertebrae

vertebrae cervical spondylosis backbone neck bone vertebra spinal skeleton anatomy backache injury spine comparison healthy problem xray outline diagram labeled educational scheme explanation health anatomical back cartilage central compression human medical pain damage trauma concept traumatology inflammation medicine tension side view atlas axis bulging disk spurs narrowed space stenosis degenerative illness fla source file available causing compressed nerves body disease