Structures passing through the greater sciatic foramen are all of the following except -

Structures passing through greater sciatic foramen. Piriformis Above Piriformis    Superior gluteal nerve and vessels Below Piriformis    Inferior gluteal nerve and vessels    Sciatic nerve   Posterior cutaneous nerve of thigh    Nerve to quadratus femoris    Pudendal nerve    Internal pudendal vessels    Nerve to obturator internus