Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,907,377,352 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

hiatus
(redirected from aortic hiatus, hiatus aorticus)

   Also found in: Dictionary/thesaurus, Legal, Financial, Encyclopedia, Wikipedia 0.02 sec.
hiatus /hi·a·tus/ (hi-a´tus) [L.] an opening, gap, or cleft.hia´tal
aortic hiatus  the opening in the diaphragm through which the aorta and thoracic duct pass.
Enlarge picture
Inferior view of the diaphragm, showing the openings through which the aorta, esophagus, and vena cava pass.
esophageal hiatus  the opening in the diaphragm for the passage of the esophagus and the vagus nerves.
pleuroperitoneal hiatus  foramen of Bochdalek; a posterolateral opening in the fetal diaphragm; its failure to close leaves a congenital posterolateral defect that may become a site for congenital diaphragmatic hernia.
saphenous hiatus  the depression in the fascia lata bridged by the cribriform fascia and perforated by the great saphenous vein.
semilunar hiatus  the groove in the ethmoid bone through which the anterior ethmoidal air cells, the maxillary sinus, and sometimes the frontonasal duct drain via the ethmoid infundibulum.

hi·a·tus (h-ts)
n. pl. hiatus or hi·a·tus·es
1. An aperture or fissure in an organ or a body part.
2. A foramen.

hi·atal adj.

hiatus
[hī·ā′təs]
Etymology: L, hiare, to stand open
a usually normal opening in a membrane or other body structure. hiatal, adj.

hiatus [hi-a´tus] (L.)
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.

hiatus
pl. hiatus [L.] an aperture, gap, cleft or opening.

aortic hiatus, hiatus aorticus
the opening in the diaphragm through which the aorta and thoracic duct pass.
esophageal hiatus hernia
see hiatal hernia.
esophageal hiatus, hiatus esophageus
the opening in the diaphragm for the passage of the esophagus and the vagus nerves.
vena caval hiatus
the opening in the diaphragm for the passage of the caudal vena cava; properly called foramen venae cavae.


Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Add definition
Mentioned in?   Medical browser?   Full browser?
 
 
 
Medical Dictionary
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.