First Time User? Sign Up Now
First Time User? Enroll now.
Home > Health Library > Spine
The spine is a column of 33 bones, called vertebrae, that stack on top of each other, extending from the base of the skull to the tailbone. Most vertebrae are separated by discs that act as shock absorbers for the spine.
The spinal column is the main structure to support movement. The structures of the spine also surround and protect the spinal cord, which is a soft bundle of nerves that stretches from the base of the brain to the lower back. The spinal cord allows complex communication between the brain and the body.
The spine is also sometimes called the spinal column or backbone.
Current as of: November 16, 2020
Author: Healthwise Staff
Medical Review:William H. Blahd Jr. MD, FACEP - Emergency Medicine & Adam Husney MD - Family Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2021 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.