Question #480

Considering the nerves that pass directly inferior to piriformis, which of the following statements is correct?

The pudendal nerve is the largest

The inferior gluteal nerve emerges most medially

The pudendal nerve appears most laterally

The posterior cutaneous nerve lies lateral to the sciatic nerve

The sciatic nerve may emerge as two separate nerves

Structures that pass through the greater sciatic foramen below piriformis can be remembered by the mnemonic: POPS IQ (in order from medial to lateral).

• P - Pudendal nerve and internal pudendal vessels
• O - nerve to Obturator internus
• P - Posterior cutaneous nerve of the thigh
• S - Sciatic nerve
• I - Inferior gluteal nerve and vessels
• Q - nerve to Quadratus femoris

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