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 ...

The compression of the spinal cord can block nerve signals from the spinal nerve roots emerging from different parts ... Cervical myelopathy is compression of the spinal cord in the cervical spine ...