What is the role of the intervertebral discs?

The intervertebral discs play a crucial role in the spine by absorbing shock and providing cushioning between the vertebrae. They are composed of a gelatinous core called the nucleus pulposus surrounded by a tough outer layer known as the annulus fibrosus. This design allows the discs to withstand compressive forces, acting as shock absorbers during movement, which is vital for maintaining spinal health and reducing the risk of injury during activities that involve impact or load.

By cushioning the vertebrae, the intervertebral discs also help to maintain proper spacing and alignment within the vertebral column, which supports overall stability. While the discs do contribute to spinal flexibility and can assist in limited movement, their primary function is focused on shock absorption and providing the necessary cushioning to distribute loads during various activities, helping to protect the spinal cord and other structures within the spinal column.