Each vertebra is numbered and grouped into 5 regions. Diagram. There are 7 cervical vertebrae in the cervical region. There are 12 thoracic vertebrae in the thoracic region. There are 5 lumbar ...

If you have upper and middle back pain, that involves your thoracic spine. There are 12 vertebrae in your thoracic spine. You may hear your doctor refer to them as T1 through T12. Between these ...

which was measured between the second/third thoracic vertebrae and the 11th/12th thoracic vertebrae, and maximal active flexion and extension of the lumbar spine, which was measured between the ...