degenerative disc disease. human bone anatomy.

anatomical anatomy annulus apophyseal back backache backbone body bone bones bulging cartilage chiropractic column compression cord degenerated degeneration degenerative disc discs disease disk disorders distance fluid formation health healthy herniated human illustration inflammation injury intervertebral joint loss lumbar makes medical medicine narrow nerve nucleus osteoarthritis osteophyte osteoporosis pain painful pulpous root skeletal skeleton spin spinal spine symptom system thinking thinner this vertebra vertebrae vertebral your