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Sacral spinal nerve 3: Wikis


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The sacral spinal nerve 3 (S3) is a spinal nerve of the sacral segment.[1].

It originates from the spinal column from below the 3rd body of the sacrum

Sacrum, showing bodies in center.


S3 supplies many muscles, either directly or through nerves originating from S3. They are not innervated with S3 as single origin, but partly by S3 and partly by other spinal nerves. The muscles are:


  1. ^ American Medical Association Nervous System -- Groups of Nerves


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