Superior Gluteal Above Piriformis — FRCA Primary MCQ

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ModerateAnatomySuperior Gluteal Above PiriformisFRCA Primary

Regarding the anatomy of the sacral plexus the superior gluteal nerve exits the pelvis through the greater sciatic foramen above which muscle?

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Correct answer: B — Piriformis

The superior gluteal nerve (L4-S1) exits the pelvis ABOVE piriformis through the greater sciatic foramen. Most other structures exit BELOW piriformis: sciatic nerve / inferior gluteal nerve / pudendal nerve / posterior cutaneous nerve of thigh / nerve to obturator internus / and internal pudendal vessels. Piriformis is the key landmark for the greater sciatic foramen.

Reference: RCoA 2021 Primary FRCA Curriculum