the opening in the diaphragm bounded by the two crura, the vertebral column, and the median arcuate ligament, through which pass the aorta and thoracic duct. Syn: hiatus aorticus [NA], aortic foramen, aortic opening.
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the opening in the diaphragm bounded by the two crura, the vertebral column, and the median arcuate ligament, through which pass the aorta and thoracic duct. Syn: hiatus aorticus [NA], aortic foramen, aortic opening.