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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 right crus of the diaphragm, between the central tendon and the aortic hiatus and at the level of vertebra T10, through which the esophagus and the two vagus nerves pass.
Farlex Partner Medical Dictionary © Farlex 2012
The opening in the diaphragm through which the esophagus passes.
See also: hiatus
Medical Dictionary, © 2009 Farlex and Partners