| A | B |
| lumbar vertebrae | vertebrae which are found in the lower part of the back, designed to support more weight than other vertebrae |
| thoracic cage | is formed of ribs, vertebrae, sternum, and costal cartilages |
| sternum | breastbone |
| cervical vertebrae | 7 bones comprised of bony axis of the neck |
| coccyx | the lowest part of the vertebral column composed of four fused vertebrae |
| ribs | bones attached to both the vertebrae and sternum |
| vetebral column | bone structure that extends from the skull to the pelvis |
| thoracic vertebrae | vertebrae which articulate with a rib that are adapted to bearing loads of body weight |
| vertebrae | bones that are separated by masses of fibrocartilage and connected to each other by ligaments |
| axis | cervical vertebrae that allows the head to pivot side to side |
| atlas | cervical vertebrae that supports the head |
| sacrum | triangular structure of bone that is composed of five fused vertebrae |