the authors define , explain , and illustrate a number of concepts pertaining to normal spinal anatomy that are of practical use but omitted in standard anatomical sources or are the subject of conflicting views : bony and cartilaginous end-plate , marginal ring , cortex of the vertebral body , isthmus , neurocentral junction , uncus , uncovertebral joint , zygapophyseal joint , annulus fibrosus , shorter and longer perivertebral ligaments , interspinous bursa , mamillo-accessory ligament .
C0022417
joint
C0006441
bursa