There are 24 articulating vertebra: -7 cervical -12 thoracic - 5 Lumbar The sacrum and coccyx consist of fused vertebra. The sacrum consists of 5 fused vertebra, and the coccyx consists of 3-5 fused vertebra. In between each vertebra you have an intervertebral disc, which forms a cartilaginous joint between the vertebra. These discs function to absorb shock and...