The sciatic nerve is the longest and largest nerve in the human body. Just like the spinal cord, it is approximately the width of a human finger. The sciatic nerve is made up of a combination of spinal nerves and forms on the right and left side of the lower lumbar spine.
Sciatica is the term used to describe pain or other symptoms including burning, pins and needles, numbness, tingling and weakness along the distribution of the sciatic nerve from the lower back to the foot.
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