The sciatic nerve is the largest nerve in the body, formed by nerve roots coming out of the spinal cord in the lower back. The nerve first goes down through the buttock. Then its branches extend down the back of the leg to the ankle and foot.
Last Revised: March 12, 2012
Author: Healthwise Staff
Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine & Robert B. Keller, MD - Orthopedics
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