Structures passing through the greater sciatic foramen are all of the following except: (A) Pyriformis, (B) Superior gluteal nerve, (C) Inferior gluteal nerve, (D) Obturator nerve
Answer is D. GREATER SCIATIC FORAMEN:- Gateway of gluteal region.1. pyriformis: key muscle of the region. 2. structures passing above pyriformis.A. Superior gluteal nerve B. Superior gluteal vessels. 3. Structures passing below the pyriformis:-Inferior gluteal nerve and vessels.Sciatic nerve Posterior cutaneous nerve of thighPudendal nerve Nerve to quadratus femorisNerve to obturator internus.Internal pudendal vessels. LESSER SCIATIC FORAMEN:-Gateway of the perineal region.1. Tendon of obturator internus2. Pudendal nerve3. Internal pudendal vessels4. Nerve to obturator internus. <img src=" /> {Reference: BDC 6E pg no.74}