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 ?
Mouth terminal; premaxillary horizontally aligned; maxillary long, somewhat inclined and reaching a vertical line through mid-pupil; maxillary bone forming an obtuse angle with premaxillary when mouth is closed; maxillary length range: 8.
4 mm SL) with hooks; females usually larger in SL than males; lower jaw slight larger in females; maxillary bone, orbital diameter, pectoral-fin, pelvic-fin and anal-fin length proportionally larger in males.
These synapomorphies of the maxillary bone exclude the nominal D.
The maxillary bone showed an irregular, hard tumor mass measuring 7 x 5 x 5 cm with a central crater-shaped ulcer, 2.
2021 This seems to be the result of the alteration in the vascularity of the maxillary bone in diabetic patients.
Our patient 1 was radiologically diagnosed with fibrous dysplasia of the maxillary bone.
The reason for the higher percentage of these fractures may be due to the fact that most of the injuries are caused by RTA and falls in this country, where the maxillary bone are more prone to fracture than other bones.
In some cases they have to remove the maxillary bones in order to find details that cannot be identified in any other way.
Parts of a walrus seem to have a central position: The maxillary bones were split, but the sockets were placed close together on top of three walrus ribs.
Radiography indicates absence of left lacrimal, left 1st, 2nd, 3rd subocular, dentary, premaxillary, and maxillary bones.