maxilla

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maxilla

 [mak-sil´ah] (L.)
one of two identical bones that form the upper jaw. The maxillae meet in the midline of the face and often are considered as one bone. They have been described as the architectural key of the face because all bones of the face except the mandible touch them. Together the maxillae form the floor of the orbit for each eye, the sides and lower walls of the nasal cavities, and the hard palate. The lower border of the maxilla supports the upper teeth. Each maxilla contains an air space called the maxillary sinus.
Maxilla.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

max·il·la

, gen. and pl.

max·il·lae

(mak-sil'ă, mak-sil'ē), [TA]
An irregularly shaped pneumatized bone, supporting the superior teeth and taking part in the formation of the orbit, hard palate, and nasal cavity and containing the maxillary sinus.
[L. jawbone]
Farlex Partner Medical Dictionary © Farlex 2012

maxilla

(măk-sĭl′ə)
n. pl. maxillae (măk-sĭl′ē) or maxillas
1. Anatomy Either of a pair of bones of the human skull fusing in the midline and forming the upper jaw.
2. A homologous bone of the skull in other vertebrates.
3. Either of two laterally moving appendages situated behind the mandibles in insects and most other arthropods.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

maxilla

Either of a pair of irregular bones constituting the upper jaw, which house the upper teeth and form part of the orbit, nasal cavity and palate.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

max·il·la

, pl. maxillae (mak-silă, -ē) [TA]
An irregularly shaped bone, supporting the superior teeth and taking part in the formation of the orbit, hard palate, and nasal cavity.
[L. jawbone]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

maxilla

One of a pair of joined facial bones that form the upper jaw, the hard palate, part of the wall of the cavity of the nose and part of the floor of each eye socket. The maxillae bear the upper teeth and each contains a cavity called the maxillary antrum or sinus.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

maxilla

  1. (in vertebrates) one of a pair of joined bones forming the upper jaw, carrying all teeth except the incisors. The term is loosely used to denote the whole of the upper jaw.
  2. (in arthropods) that part of the mouthparts lying behind the jaws. See LABRUM and LABIUM.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Maxilla

The bone of the upper jaw which serves as a foundation of the face and supports the orbits.
Mentioned in: Maxillofacial Trauma
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

max·il·la

, pl. maxillae (mak-silă, -ē) [TA]
Irregularly shaped pneumatized bone, supporting superior teeth and taking part in formation of orbit, hard palate, and nasal cavity.
[L. jawbone]
Medical Dictionary for the Dental Professions © Farlex 2012