Structures passing through greater sciatic foramen mnemonic

A mnemonic to remember the structures passing below the piriformis muscle in the greater sciatic foramen is:

  • PIN PINS or SNIP NIP

Mnemonic

  • sciatic nerve
  • nerve to obturator internus
  • internal pudendal vessel
  • pudendal nerve
  • nerve to quadratus femoris
  • inferior gluteal vessels
  • posterior cutaneous nerve of thigh