Spinal discs
Content provided by Healthwise
Spinal discs
Spinal discs are located between each of the 33 vertebrae, which are the interlocking bones of the spine that are stacked on top of one another. These discs act as shock absorbers for the spine and allow it to flex, bend, and twist.
The outer portion of a spinal disc, called the capsule (annulus fibrosus), is made of tough, elastic cartilage. The capsule surrounds a mass of jellylike material called the nucleus (nucleus pulposus).
Aging, injury, and illness can cause the spinal discs to crack or rupture. The jelly-like nucleus can leak out, putting pressure on the spinal nerves. Back pain, numbness, and weakness may result, which sometimes requires surgery.
Spinal discs are also called intervertebral discs.
Credits
| Author | Shannon Erstad, MBA/MPH |
| Editor | Kathleen M. Ariss, MS |
| Associate Editor | Pat Truman, MATC |
| Primary Medical Reviewer | William M. Green, MD - Emergency Medicine |
| Specialist Medical Reviewer | Robert B. Keller, MD - Orthopedics |
| Last Updated | July 21, 2008 |
| Last updated: | July 21, 2008 |
|---|---|
| Author: | Shannon Erstad, MBA/MPH |
| Reviewed By: | William M. Green, MD - Emergency Medicine, Robert B. Keller, MD - Orthopedics |
| Editors: | Kathleen M. Ariss, MS, Pat Truman, MATC |
© 1995-2007, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information is not intended to replace the advice of a doctor. By using AOL Body, you indicate that you have read, understood, and agreed to our Terms of Service, and AOL Body Advertising Policy. Read more about our content partners.
Search
Where Does it Hurt?
If you're experiencing aches and pains we can help you find answers. Find out what your symptoms mean for your health.
