General Structure
It is bounded by a thin, uneven margin, to which a strong membrane is attached, and presents, superiorly, a deep groove, the obturator groove, which runs from the pelvis obliquely medialward and downward.
This groove is converted into the obturator canal by a ligamentous band, a specialized part of the obturator membrane, attached to two tubercles:
- one, the posterior obturator tubercle, on the medial border of the ischium, just in front of the acetabular notch
- the other, the anterior obturator tubercle, on the obturator crest of the superior ramus of the pubis
Through the canal the obturator artery, obturator vein and obturator nerve pass out of the pelvis.
---> For etymology see obturate.
Read more about this topic: Obturator Foramen
Famous quotes containing the words general and/or structure:
“Without metaphor the handling of general concepts such as culture and civilization becomes impossible, and that of disease and disorder is the obvious one for the case in point. Is not crisis itself a concept we owe to Hippocrates? In the social and cultural domain no metaphor is more apt than the pathological one.”
—Johan Huizinga (1872–1945)
“Just as a new scientific discovery manifests something that was already latent in the order of nature, and at the same time is logically related to the total structure of the existing science, so the new poem manifests something that was already latent in the order of words.”
—Northrop Frye (b. 1912)