What is the function of backbone?

The backbone, also called the spine, runs down the back of the body, from the base of the skull to the coccyx. It provides strong support for the head and body, while allowing the body to twist and bend. It also protects the spinal cord – the thick bundle of nerves that carries messages between the brain and the body.

The human backbone is formed by small, pillar – shaped bones called vertebrae (one is called a vertebra). These stacks together to form a strong, flexible, S-shaped column. This shape makes the backbone springy enough to absorb shock during movement, while larger vertebrae in the lower back help to support the upper body’s weight. Each vertebra slots into its neighbour to form a flexible but secure tunnel surrounding the spinal cord.

 

Picture Credit : Google