sacral plexus

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Related to sacral plexus: sciatic nerve
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Noun1.sacral plexus - a nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nervessacral plexus - a nerve plexus formed by the 4th and 5th lumbar and 1st, 2nd, 3rd sacral nerves; supplies the pelvic region and lower limbs
nerve plexus - a network of intersecting nerves
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References in periodicals archive ?
The lumbar enlargement extends from T9-T12 and is associated with innervation of the lower limb via the lumbar plexus (L1-L4) and the sacral plexus (L4/L5 & S1/S3).
Epidemiology and clinical characteristics: Pelvic nerve endometriosis implants (sacral plexus, pudendal or sciatic nerves) are very rare extraperitoneal localizations.
In this technique, local anesthetic spreads close to the sacrum and nerve roots and therefore can block proximal branches of the sacral plexus such as the posterior femoral cutaneous nerve, the superior and inferior gluteal nerves, and the nerve to the quadrate muscle of the thigh (with branches to the hip joint) [16, 31].
The femoral and obturator nerves are the terminal nerves of the lumbar plexus that innervate the hip joint together with the lumbosacral trunk of the sacral plexus. All these nerves can be anesthetized with a single injection paravertebrally between the transverse process of the fifth lumbar (L5) vertebra and the cranial border of the sacral ala [7,8].
That, in turn, sends an electrical pulse up to the sacral plexus, which regulates bladder and pelvic floor muscle function.