Sacral Plexus

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Sciatic Nerve
Superior Gluteal Nerve
Inferior Gluteal Nerve
Nerve to Quadratus Femoris
Nerve to Obturator Femoris
Posterior Cutaneous Nerve of Thigh
Pudendal Nerve
Nerves to Piriformis
Pelvic Splanchnic Nerves
Perforating Cutaneous Nerve

  • lies of posterior pelvic wall
    • in front of piriformis muscle
  • formed from anterior rami of
    • L4, L5
    • S1-S4

Relations

  • Anteriorly
    • parietal pelvic fascia
      • separates plexus from
        • internal iliac vessels
        • rectum
  • Posteriorly
    • piriformis

Branches

 

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