What is "backbone"?

The backbone, also known as the spine or vertebral column, is a singular body part that forms the central axis of the skeleton. It consists of a series of stacked bones called vertebrae, which provide support and protection for the spinal cord. The backbone plays a crucial role in maintaining posture, allowing for flexibility and movement, and protecting the delicate spinal cord from injury. It serves as an anchor for various muscles and ligaments, enabling a wide range of movements, such as bending, twisting, and lifting. The backbone is essential for overall body stability and serves as a vital conduit for nerve impulses between the brain and the rest of the body.