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antrum

  (ăn'trəm) pronunciation
n., pl. -tra (-trə).
  1. A cavity or chamber, especially one in a bone.
  2. Either of the sinuses in the bones of the upper jaw, opening into the nasal cavity.

[Late Latin, cavity in the body, from Latin, cave, from Greek antron.]

antral an'tral adj.
 
 
(an′trum)
n

A maxillary sinus. A cavity in the maxilla, lined by ciliated columnar epithelium, the inferior border of which approximates the apices of the roots of the maxillary posterior teeth.

 

Pertaining to the antrum; usually the reference is to the pyloric antrum of the stomach. See also pylorus.

  • a. peristalsis — responsible for the onward movement of ingesta through the pylorus; when the pylorus is closed the movements assist in the mixing and maceration of the stomach contents.
 
Wikipedia: antrum

In Biology, "Antrum" is a general term for a cavity or chamber which may have specific meaning in reference to certain organs or sites in the body.

Examples include


 
 

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Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.  Read more
Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved.  Read more
Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Antrum" Read more

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