Edit page | Page history | Printable version

sciatic plexus --> sacral plexus

formed by the fourth and fifth lumbar (lumbosacral trunk) and first, second, and third sacral nerves; it lies on the inner surface of the posterior wall of the pelvis usually embedded in the piriformis muscle; its nerves supply the lower limbs, its major product being the sciatic nerve.

Synonym: plexus sacralis, ischiadic plexus, sciatic plexus.