1. Health
You can opt-out at any time. Please refer to our privacy policy for contact information.

Corticospinal Tract

By

Updated January 14, 2008

Definition: Nerve structures that begin in the sensorimotor areas of the cortex and go through the brainstem to the motor neurons of the spinal cord. Its main functions are to control motor movement, including fine motor control and maintaining posture.

In multiple sclerosis (MS), lesions on the corticospinal tract cause symptoms of spasticity and paralysis.

Also Known As: pyramidal tract
  1. About.com
  2. Health
  3. Multiple Sclerosis
  4. Glossary
  5. Corticospinal Tract and Multiple Sclerosis - Definition of Corticospinal Tract

©2014 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health
information: verify here.