The spine consists of a chain of bony rings called vertebrae which provide support for our whole body, linking head, shoulders, chest and pelvis. It is strong (to support the The spinebody weight), supple (discs between the vertebra absorb shock) and flexible (to allow turning and bending). Because the spinal cord is such an important part of our nervous system, it is surrounded and protected by the spine. 

There are 33 vertebrae which are divided into these major sections:  

CERVICAL (neck) which has 7 vertebrae.

THORACIC (chest) which has 12 vertebrae.

LUMBAR (lower back) which has 5 vertebrae.

SACRAL section which has 5 vertebrae.

TAIL BONE/COCCYX which has 4 vertebrae (fused together).

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