sacral spinal nerve 3
{{Infobox anatomy
| Name = Sacral spinal nerve
| Latin = nervi spinalis
| Image = Sobo 1909 715.png
| Caption = The plan of the lumbosacral plexus
| System =
| Precursor =
}}
The sacral spinal nerve 3 (S3) is a spinal nerve of the sacral segment.[http://www.ama-assn.org/ama/pub/category/7173.html American Medical Association] Nervous System -- Groups of Nerves
It originates from the spinal column from below the 3rd body of the sacrum.
File:Gray95.png, showing bodies in center.]]
Muscles
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:
Additional images
File:Slide20y.JPG|Sacral spinal nerve 3