Choose the appropriate lettered structure in this computed tomography scan of the female perineum and pelvis. Which structure is innervated by the nerve passing through both the greater and lesser sciatic foramina?
(b) The obturator internus muscle and its fascia form the lateral wall of the ischiorectal fossa. This muscle is innervated by the nerve to the obturator internus, which passes through the greater and lesser sciatic foramen.
A
B
C
D
Abdomen & Pelvis