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Sacral plexus posterior divisions

Divisions · S1 S2

The posterior (dorsal) divisions of L4–S2 (lumbar fibres arriving through the lumbosacral trunk) form the common fibular part of the sciatic nerve, the superior and inferior gluteal nerves and the nerve to piriformis.

Traced from the start

  1. S1 anterior ramusS2 anterior ramus
  2. Sacral plexus posterior divisions

Detail

Forms
Common fibular component of the sciatic (L4–S2), superior gluteal (L4–S1), inferior gluteal (L5–S2), nerve to piriformis (S1–S2)
Destination
Gluteal abductors and extensor, anterior and lateral leg compartments

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