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Medical Term:

aortic hiatus


the opening in the diaphragm, at the level of vertebra T12, bounded by the two crura, the vertebral column, and the median arcuate ligament, through which the aorta and thoracic duct pass.

Synonym(s): hiatus aorticusTA, aortic foramen, aortic opening

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.