This spinal column is flexible to show the natural movement of the spine. It is life size and includes the occipital plate, cervical, thoracic, and lumbar vertebrae, sacrum, coccyx, complete pelvis, and removable femur heads. The left side of the skeleton is painted to show the muscle origins (red) and muscle insertions (blue). This model also features representations of the vertebral arteries, spinal nerve branches, and intervertebral discs. Column comes mounted on a stand and includes a detailed manual. Dimensions: 8 in. x 8 in. x 37 in.