This artery can be found in any foramen and is always located in ... triangle that overlies the dorsolateral disc. In this triangle, the hypotenuse is the exiting nerve, the base is the caudad ...

The sacrum is a triangular bone wedged into the rear section of the pelvis. It is made up of five fused vertebral bones ... The obturator foramen is the opening between the pubis and the ischium ...