Intervertebral disc

Definition

Intervertebral discs are pads of cartilage situated between the vertebrae in the spine, serving as shock absorbers and allowing for flexibility. Each disc has a tough outer layer called the annulus fibrosus and a soft, gel-like center known as the nucleus pulposus.

Related terms

Vertebrae:

The individual bones that stack to form the vertebral column, providing structural support to the body and protecting the spinal cord.

Annulus Fibrosus:

The tough, outer layer of an intervertebral disc that encases and protects the soft inner core, nucleus pulposus.

Nucleus Pulposus:

The soft, gelatinous center of an intervertebral disc that helps absorb shock and maintain flexibility of the spine