maxilla


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maxilla

1. the upper jawbone in vertebrates
2. any member of one or two pairs of mouthparts in insects and other arthropods used as accessory jaws

maxilla

[mak′sil·ə]
(anatomy)
The upper jawbone.
The upper jaw.
(invertebrate zoology)
Either of the first two pairs of mouthparts posterior to the mandibles in certain arthropods.
References in periodicals archive ?
3,6) The rarest pattern--and that most representative of an advanced disease state--is uremic leontiasis ossea which presents as marked expansion of the mandible and maxilla, occasionally with obliteration of the maxillary sinuses and splaying of the teeth.
Similarly, the relative size and proportions of the second maxilla segments are the same, and the most basal segment has three characteristic teeth (Fig.
The most common location for radicularcyst was anterior maxilla 34%, for dentigerious cyst mandibular angle 21% and for OKC mandible involved in 11% cases (table-I).
In case of a suspected lesion in the mandible or maxilla on computed tomography (CT), magnetic resonance imaging and nuclear medicine imaging are used as supplementary imaging techniques.
In comparison to maxilla, mandible is predominantly affected with 83.
When maxilla is affected it may involve zygomatic and sphenoid bone.
Physical examination of oral cavity of animal showed presence of soft tissue swelling at right side of maxilla.
On intraoral examination, a well-defined swelling was noted involving the left maxilla and measuring 6*5 cm.
Neurofibroma (NF) extending to the maxilla and associated with multifocal lesions in the infratemporal fossa, temporomandibular joint, parotid, and external auditory canal is extremely rare.
On gross examination, a hard bony growth was found in the maxilla, measuring 5 x 5 x 3 cm.
Uncontrolled incisor flaring could result in a rapid correction of the overjet, which would minimize the orthopaedic effects of the appliance on the maxilla and mandible.