An intervertebral disc is a type of ligament that connects one vertebra to the next adjacent vertebral bone. These intervertebral discs act as shock-absorbing cushions between the vertebrae of the spinal column. Each intervertebral disc has two parts. The outer ring-like structure is called as annulus fibrosis and the inner soft jelly-like part is known as nucleus pulposus. The .
Any condition that puts pressure on the spine can cause spinal cord compression. Spinal cord comprises of nerves that carries messages back and forth from the brain to the muscles and the rest of the body. This bundle of nerves is protected by the backbone. The backbone comprises of small bones called vertebrae that are stacked on top of .