An enteroscopy is a procedure that helps your doctor find and treat problems in the digestive system. Learn about the enteroscopy procedure, risks, and results. An enteroscopy is a procedure that helps your doctor find and treat problems in the digestive system. Learn about the enteroscopy procedure, risks, and results. Newsletter
The sacrum is a large wedge shaped vertebra at the inferior end of the spine. It forms the solid base of the spinal column where it intersects with the hip bones to form the pelvis.
The ala of sacrum (plural alae) is a large triangular surface on either side of the body of the base of the sacrum.The alae support the psoas major muscles and the lumbosacral trunk which connects the lumbar plexus with the sacral plexus. In the articulated pelvis the alae are continuous with the iliac fossa.he posterior quarter of the ala represents the transverse process, and its anterior three-quarters the costal process of the first sacral segment. It serves as part of the border of the pelvic brim. The alae also form the base of the lumbosacral triangle.