Sacral spinal nerve 4: Difference between revisions
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Latest revision as of 14:48, 6 September 2012
The sacral spinal nerve 4 (S4) is a spinal nerve of the sacral segment.[1].
It originates from the spinal column from below the 4th body of the sacrum
Muscles
S4 supplies many muscles, either directly or through nerves originating from S4. They are not innervated with S4 as single origin, but partly by S4 and partly by other spinal nerves. The muscles are:
References
- ↑ American Medical Association Nervous System -- Groups of Nerves