This highly detailed life-size model shows all significant features of each vertebra, including spinal cord, nerve roots, the vertebral artery, a herniated disc, vertebral notches, etc. This model is designed as visual aid for teaching anatomy and physiology courses. Special features include: 29" tall vertebral column complete with pelvis, sacrum, occipital bone, vertebral artery, all nerve branches and herniated lumbar disc. Helps students understand the relationship between human vertebral column and pelvis. Can be used for studying the morphology of the vertebral column and the construction of joints. Made from washable, high-quality PVC and comes with a deluxe chrome stand that stands 34" high.AJANTA