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antrum

 
Dictionary: an·trum   (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.

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Dental Dictionary: antrum
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(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
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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.

In Embryology, the ovulation.

Examples include


 
 

 

Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. 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 Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Antrum" Read more