sacral plexus

Origin

• ventral rami of L4, L5, & S1-S3

Innervation

• lower limbs

Course

• the plexus lies on the inner surface of the posterior wall of the pelvis, generally embedded in the piriformis muscle.

Branches

• sciatic nerve

More general terms

• plexus

Additional terms

• lumbosacral trunk
• sciatic nerve

Component of

• lumbosacral plexus