The<unk>  is formed by the right and left crura of the diaphragm. The crura connect to form an arch, behind which is the aortic hiatus, through which pass the aorta, the azygos vein, and the thoracic duct. Variation In between 10% and 24% of people, the<unk>  occurs very low.
Median arcuate ligament
Osborne's ligament
Ligamenta flava
Posterior cruciate ligament
Meckelian groove
Pterygium inversum unguis
Pulvermacher's chain
Vesical tenesmus