Sacral spinal nerve 2

The sacral spinal nerve 2 (S2) is a spinal nerve of the sacral segment.
It originates from the spinal column from below the 2nd body of the sacrum 
Muscles.
S2 supplies many muscles, either directly or through nerves originating from S2. They are not innervated with S2 as single origin, but partly by S2 and partly by other spinal nerves. They are most commonly known to govern the toes. The muscles are: