Answer:
The vertebral column which also none as the spinal column is divided into segments made of 32 bones. The Cervical vertebrae has 7 bones which make up the neck. The Thoracic vertebrae has 12 bones and forms the upper back. The Lumbar vertebrae has 5 bones and forms the lower back. The fifth articulates with the sacrum which in turn articulates with the coccyx. The cervical, thoracic, and lumbar regions consist of individual vertebrae. The Bones are labeled according to the region. Example the Cervical region is labelled C-1-7, the thoracic is labelled T-1-12 and the lumbar area is labled L-1-5. The Sacrum consists of fused components of 5 sacral vertebrae. The Coccyx consists of 3-5 coccygeal vertebrae that have fused together.