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 ?
Skeletal morphological characteristics that correlate with turbinate hyperplasia Anteroposterior Vertical Transverse Maxilla Normal 12% 13% 45% Hypoplasia 84% * 48% 52% Hyperplasia 4% 39% 3% Mandible Normal 10% 95% 98% Hypoplasia 72% * 2.
Anatomic Location of Orthokeratinized Odontogenic Cysts (OOCs) and Comparison With Keratocystic Odontogenic Tumors (KCOTs) Reported Previously by Our Group Cases, Maxilla (%) Lesion No.
An incidental note was made of a left maxillary sinus mucus retention cyst, with an otherwise spared contralateral maxilla.
The mandible is more commonly involved than the maxilla because of its greater red marrow content.
The right maxilla (mx) is better preserved than its counterpart, with the former containing both the articulation for the vomer (fv) and the internal process (ipr).
The following measurements were made on 50 museum specimens (25 male and 25 female) of both Nomonyx dominicus and Oxyura jamaicensis: length of mandible, length of maxilla (dorsal), length of maxilla (lateral), depth of maxilla, width of maxilla, width of mandible, length of tarsus (as an indicator of general body size), and number and size of lamellae (Table 1).
Aspidelaps lubricus's muscle does not insert on the rostral scale or premaxilla, it inserts on the anterior medial portion of the maxilla, meaning that it can not swivel its snout like A.
What is common to both the hyperextension and inferior vertical strain is the inward and upward rotation of the body and greater wings of the sphenoid, causing the maxilla to be contracted laterally and drawn up and back.
As can be seen from the diagram in Figure 4, artifacts in presented case are manifested mainly in two regions: in the mandible region A because of the mandibular titanium implants, and in the maxilla region B because of the amalgam fillings.
15 in SL; dorsal fin at midbody or slightly posterior; trunk scales 5/35/3, pre- dorsal 11: caudal fin scaled up to 2/3 of the lobes; anal fin iii,20; premaxilla 4-5 tricuspid/5 pentacus-pid; maxilla long, up to pupil's level, apparently without tooth; a longitudinal line broadened at dorsal level and forming a lozenge on peduncle, narrowed on caudal and ending on the tip of the middle caudal rays; tips of lobes black without white or hyaline margin; a photo in aquarium of a specimen collected Station 7 (Pirapitinga) shows no striking colours; body pale green, caudal fin marks grey, not as well delimited as in the preserved specimens; a silvery band.
They cover linear and non-linear optical phenomena, luminescence and time-resolved emission spectra of Nd3+ and Er3+: silver zinc borate glasses, spectral features of lead arsenate glasses doped with copper oxide, dielectric studies on alkali borate glasses mixed with iron oxide, a case study of treating a large cystic lesion in the anterior maxilla using glass reinforced hydroxyapatite, and guided bone regeneration using glass-reinforced hydroxyapatite and collagen membrane in treating peri-implantitis.