The complicated features of the spinal column can be easily explained with this detailed set of three spinal models. Cervical model includes seven cervical vertebra, occipital bone with intervertebral discs, nerve endings, and arteria vertebralis. Thoracic model includes 12 thoracic vertebrae, intervertebral discs, and nerve branches. Lumbar model features five lumbar vertebrae, sacrum with flap and coccyx intervertebral discs, and nerve endings. Each model is mounted on a stand. Thoracic and Lumbar models are 13" tall. Cervical model is 7 1-2" tall.