All of the following structures passes through lesser sciatic foramen, EXCEPT:
Inferior gluteal vessels
Internal pudendal vessels
Pudendal nerve
Nerve to obturator internus
Structures passing through the lesser sciatic foramen are tendon of obturator internus, internal pudendal vessels and pudendal nerve. Structures passing through greater sciatic foramen are:Piriformis muscleSuperior and inferior gluteal vesselInternal pudendal vesselPudendal nerveSciatic nervePosterior femoral cutaneous nerveNerve to obturator internusQuadratus femorisStructures passing through both greater and lesser sciatic foramen:Pudendal nerveInternal pudendal vesselsNerve to obturator internusRef: BRS Gross Anatomy By Kyung Won Chung, page 97