All of the following structures passes through lesser sciatic foramen, EXCEPT:

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