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A. From the<br />
roots<br />
BRANCHES OF SACRAL PLEXUS<br />
of the Plexus:<br />
1.Muscular<br />
branches:<br />
to the piriformis (S1,S2),<br />
levator<br />
ani , and coccygeus and to the sphincter ani externus<br />
(S4).<br />
2.Pelvic<br />
splanchnic nerves (S2,S3):<br />
These constitute<br />
the sacral part of the parasymphatetic system.<br />
-They unite with the sympathetic pelvic plexus to be<br />
distributed to the pelvic viscera and lower part of the<br />
colon along the blood vessels.
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