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.

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]

maxilla

/max·il·la/ (mak-sil´ah) pl. maxil´las, maxil´lae   [L.] the irregularly shaped bone that with its fellow forms the upper jaw. max´illary

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.

maxilla

[maksil′ə] pl. maxillae
Etymology: L, mala, jaw
one of a pair of large bones (often referred to as one bone) that form the upper jaw and teeth, consisting of a pyramidal body and four processes: the zygomatic, frontal, alveolar, and palatine.
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Maxilla

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.

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]

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.

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.

Maxilla

The bone of the upper jaw which serves as a foundation of the face and supports the orbits.
Mentioned in: Maxillofacial Trauma

maxilla (mak·silˑ·),

n the upper jaw bone. It encloses the maxillary sinus and other cavities and projections.
Enlarge picture
Maxilla.

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]

maxilla (maksil´ə),

n the irregularly shaped bone forming half of the upper jaw or maxillary arch. It is composed of the two maxillae.
Enlarge picture
The maxilla.
maxilla, frontal process of,
n a projection of the maxilla that articulates with the nasal and frontal bones to form the nasal cavity.

maxilla

pl. maxillae, maxillas [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. 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. In most species, each maxilla contains an air space called the maxillary sinus.
References in periodicals archive ?
Indications for simultaneous mobilization of the maxilla and mandible for the correction of dentofacial deformities.
Sheil and Greenbaum (2005) suggest that the bones of the dermatocranium were grouped into elements of the palatum (pterygoid, vomer and palatine), maxillary arch (premaxilla, maxilla, jugal, quadratojugal and squamosal) and the roof of the cranium (prefrontal, postorbital, frontal and parietal).
This likely reflects a combination of the higher incidence of involvement of the mandible and maxilla in multiple myeloma relative to that of breast cancer or other solid tumor osseous metastasis, and the tendency of bisphosphonates to accumulate in regions of high bone turnover.
Repeat imaging of the head and thorax showed stable disease in the maxilla and regression of the lung nodules 5 months after completion of treatment.
nigricans (MAUL 917/1; USNM 375733) are the only other Makaira with a preserved maxilla (Fierstine 1998; Carnevale et al.
The relative width of the bill is slightly larger in the ruddy duck: the ratios of maxilla width to dorsal maxilla length are 0.
By developing the maxilla and repositioning it anteriorly, a significant alteration in airway can be achieved.
Classifications of artifacts are made by sections divided according to anatomical regions mandible, maxilla, sinus, frontal (forehead) bones and the upper part of the forehead and scalp.
6 in SL; dorsal fin slightly anterior to midbody; predorsal series of scales regular for 3-4 scales just before dorsal fin, irregular rows on the anterior two-thirds, not covering the median line; trunk scales 7418)36/5'; anal fin iv,26; sexual hooks numerous; large suborbital not developed, separated from the preopercillnr canal; premaxilla with 5-6 tricuspid outer teeth and 5 pentacuspid inner ones; maxilla relatively short, reaching to vertical through anterior margin of eye, with one small tooth; mandible with 5 strong, anterior teeth followed by much smaller ones; upper profile rather pointed, lower lip developed into a flap owing to probable lack of oxygen; humeral spot almost round, not clearly horizontally oval as in "typical" A.
Age at Grave Burial Sex death Sample goods 4 male old adult maxilla ceramic vessel (maturus) M3 2 Lockenringe (40-59 y) animal bone hide?
A specialist endocrinology opinion was that this was a picture of simple vitamin D deficiency, unrelated to the lesion in the maxilla, as the results of the parathyroid immunoassay were not considered deranged enough to be consistent with a Brown tumour.
The surgery included exploration of the artery below maxilla, breaking the jaw bone, removal of the arterial aneurysm, repair of the artery with artificial arterial graft and fixing the jaw with two metal plates.