You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Structure passing through both greater and lesser sciatic foramen are all EXCEPT: and explain in detail?
PIN (Pudendal nerve, Internal pudendal vessels and Nerve to obturator internus) structures come from pelvic cavity, pass through the Greater Sciatic Notch, hook behind the Ischial Spine (in Gluteal Region) and move into the Lesser Sciatic Notch. The Tendon (and not muscle) of Obturator Internus passes through the Lesser Sciatic Notch.