secondary palate


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Related to secondary palate: primary palate

palate

 [pal´at]
the roof of the mouth. The hard palate is the front portion braced by the upper jaw bones (maxillae); it has a bony framework and forms the partition between the mouth and the nose. The soft palate is the fleshy part arching downward from the hard palate to the throat; it separates the mouth and the pharynx. When a person swallows, the rear of the soft palate swings up against the back of the pharynx and blocks the passage of food and air to the nose. A fleshy lobe called the uvula hangs from the middle of the soft palate. adj., adj pal´atal.
cleft palate see cleft lip and cleft palate.
premaxillary palate (primary palate) that portion of the palate that was the median nasal process during early development.
secondary palate that portion of the palate that was the lateral nasal processes during early development.

sec·on·dar·y pal·ate

the portion of the embryonic palate, posterior to the primary palate that forms from the lateral palatine processes of the embryonic maxilla and develops into the hard and soft palates.

sec·on·dar·y pal·ate

(sek'ŏn-dar-ē pal'ăt)
Portion of embryonic palate, posterior to the primary palate that forms from lateral palatine processes of embryonic maxilla and develops into hard and soft palates.

sec·on·dar·y pal·ate

(sek'ŏn-dar-ē pal'ăt)
Portion of embryonic palate, posterior to primary palate that forms from lateral palatine processes of the embryonic maxilla.
References in periodicals archive ?
The most frequent type of the cleft was the unilateral complete cleft of the primary and secondary palate. The frequency of unilateral clefts is more common in this study.
Temporospatial distribution of matrix metalloproteinase and tissue inhibitors of the matrix metalloproteinases during murine secondary palate morphogenesis.
Development of secondary palate requires strict regulation of ECM remodeling: sequential distribution of RECK, MMP-2, MMP-3, and MMP-9.
Site-specific expression of gelatinolytic activity during morphogenesis of the secondary palate in the mouse embryo.
Although patients with velocardiofacial syndrome almost uniformly have clefting of the secondary palate, it is frequently an "occult" clefting that can be observed only on nasopharyngoscopy.
Other events in the facial region involved in the shifts in timing that differentiate taxa include the appearance of tooth buds, the differentiation of ear ossicles, the closure of the secondary palate, the differentiation of basicranial cartilage and several aspects of muscle development.
These include the first ossification of a variety of cranial bones, the appearance of tooth buds, the differentiation of the ear ossicles, the closure of the secondary palate, and steps in the maturation of cranial muscles (Table 4).
Shifts in the timing of development of somatic elements (especially the tongue, the facial skeleton and the secondary palate) have received most previous attention (e.g., Esdaile 1916; Hill and Hill 1955; Sharman 1973; Hall and Hughes 1987; Maier 1987a; Hughes and Hall 1988; Filan 1991; Nelson 1992; Clark and Smith 1993; Renfree 1993; Smith 1994).
CONCLUSIONS: TCDD-induced alteration of secondary palate development in the mouse appears to depend on atRA signaling, which controls AHR expression.
Their dentition became increasingly complex, and both therocephalians and cynodonts eventually developed a complete bony secondary palate (Kemp 1982).
As a result of this migration, which apparently preceded the development of the secondary palate (fig.
A rare case of lateral proboscis with clefts of the lip, alveolus, and primary and secondary palates treated by surgical excision and repair of the cleft lip is presented.