hiatus

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Related to Aortic hiatus: Aortic opening

hiatus

Anatomy
1. a natural opening or aperture; foramen
2. a less common word for vulva
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

hiatus

[hī′ād·əs]
(anatomy)
A space or a passage through an organ.
(geology)
A gap in a rock sequence due to a lack of deposition of a bed or to erosion of beds.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The abdominal aorta begins at the aortic hiatus of the diaphragm, anterior to the 12th thoracic vertebra.
A Different Origin of the Right Gastro-omental Artery/Un Origen Diferente de la Arteria Gastro-omental Derecha
The medial margins of the two crura meet in the midline and form the ill-defined median arcuate ligament and form the boundaries of the aortic hiatus. (1) Although the diaphragm is studied as a respiratory muscle, currently it is considered to have two distinct functional parts; the costal diaphragm with major respiratory role and crural diaphragm with minor respiratory role.
Duplicated right crus of the diaphragm: a cadaveric case report
The aortic hiatus was dissected and aortic opening enlarged.
Mid Aortic Syndrome: a rare vascular disorder

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