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Related to aortic hiatus: Aortic opening
an opening, gap, or cleft. adj., adj hia´tal.
aortic hiatus (hiatus aor´ticus) the opening in the diaphragm through which the aorta and thoracic duct pass.
esophageal hiatus (hiatus esophage´us) the opening in the diaphragm for the passage of the esophagus and the vagus nerves.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
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.
Farlex Partner Medical Dictionary © Farlex 2012
a·or·tic hi·a·tus(ā-ōr'tik hī-ā'tŭs) [TA]
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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012