What is the purpose of the spine?
The spine protects the spinal cord, nerve roots and internal organs while it provides flexibility in movement and structural support and balance for upright posture.
What are vertebrae and how many kinds are there?
In a nutshell, vertebrae are protective, bony structures that encase the spinal cord. The top seven vertebrae of the neck are called cervical vertebrae. The upper back has twelve thoracic vertebrae and the lower back has five lumbar vertebrae.