disc degeneration diagram with condition exampes - bulging, hernoated, degenerative and thinning disc. educational medical

disc condition bone back disease human joint medicine pain painful posture problem spine chiropractic formation health orthopedics skeletal spinal vertebra body care compression bulging central degeneration medicals thinning aged anatomical anatomy arthritis clinic diagram educational inflammation organ poster process skeleton structure system tissue treatment ageing backbone cartilage lumbar nerve illustration