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Definition
portion of the maxilla anterior to the incisive foreman. anchors four teech and is contiguous with the palate but is embryologically part of the lip. |
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during the 5th week of development what happens? |
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during the 8th wek of development what happens? |
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Definition
process by which the nasal branch is seperated from or coupled with the rest of the vocal tract. |
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unilateral incomplete cleft lip |
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Definition
does not extend to floor of nose.
trouble making seal and not good for bilabials |
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unilateral complete cleft lip |
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Definition
associated with cleft in alveolar ridge. does go to nasal floor |
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bilateral complete cleft lip |
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Definition
both sides of midline, lip and nasal cavity. may not be symmetric |
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Definition
discontinuity of orbicularia oris- have to feel for it. but outer layers of skin are intact. |
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Definition
does not include incisive foramen. tip of uvula through soft and/or hard palate but not anterior to the incisive foramen |
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incomplete unilateral cleft palate |
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Definition
most of the palate is attached to the vomer.
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incomplete bilateral cleft palate |
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Definition
neither palatal segment attached to vomer (hard or soft) |
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Term
incomplete velar cleft palate |
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Definition
central; terms unilateral and bilateral do not apply. bifid uvula (looks like you have 2, like snake tongue) |
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Term
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Definition
uvula through alveolar ridge (left or right side) both hard and soft palate |
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complete unilateral cleft palate |
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Definition
only one side of alveolus cleft (ridge) |
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Term
complete bilateral cleft palate |
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Definition
both sides of the alveolar ridge. can see vomer. premaxilla is hanging out with the lip. |
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Term
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Definition
cleft of palatal muscles (velum muscles dont insert).cleft of palatal muchles and notch in edge of hard palate but with intact mucosa. not readly visible at birth because mucosa layer is intact. |
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Term
occult submucous cleft palate |
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Definition
cleft or absence of musculus uvulae without oral manifestations seen in submucous cleft palate. seen or felt only on nasal side |
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Definition
native americans are at greatest risk then asians, caucasians, and african americans are lowest |
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Term
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Definition
recurring patterens of anomalies with a single etiology. multiple anomalies (2 or more) with the same cause for each one |
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Term
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Definition
2 or more anomalies occur together, but the primary etiology caused the 1st anomaly and it was the 1st anomaly that caused the 2nd one.
ex: if cleft lip did not develop then may cause cleft palate to not develop. but doesnt mean that if palate didnt develop the lip wont because lip occurs before palate in development of the fetus |
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Term
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Definition
mandibular (lower jaw) deficiency (seems pushed back). tongue doesnt lower, and prevents palatal shelves from joining. |
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four categories for clefts are |
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Definition
1. chromosomal abnormalities
2. genetic abnormalities
3. teratogenic agents
4. mechanical influences |
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chromosomal abnormalities |
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Definition
different abnormalities, including deletion of all or part of a chromosome, rearrangement of pieces of a chromosome, or duplication of all or part of a chromosome. most are incompatible with lift. |
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Definition
arrangement.
if gene is dominate, a fetus need inherit only one to display the particular trait for which that gene is responsible.
if gene is recessive, that particular gene must be inherited from both parents to be expressed |
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Term
1. velo-cardio-facial syndrome: genetic abnormality
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Definition
most common syndrome associated with cleft palate. incomplete cleft palate, cardiac defects, and a characteristic facial appearance. delayed language develop. |
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2. stickler syndrome: genetic abnormality |
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Definition
affects connective tissue. incomplete cleft palate, myopia (nearsightedness) and early arthritis. mildly hypernasal with compensatory articulations |
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3. van der woude syndrome: genetic abnormality |
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Definition
inherited cleft lip and/or palate with lower lip pits, and congenitally absent premolars.
speech is usually normal after palate repair.
about 40% have mild hypernasality and articulatory compensations |
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Term
4. treacher collins syndrome: genetic abnormality |
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Definition
involves face, orbits, and ears bilaterally. cleft palate is common. airway obstruction is common because the vocal tract is extremely narrow. articulation errors |
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Term
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Definition
an external agent that passes from a pregnant mother to the developing embryo or fetus through the placenta and has the potential to interfere with normal prenatal development.
alcohol, drugs, viruses.
may cause severe malformations.
cleft lip and palate may be the least problematic.
hypernasality and compensatory articulations |
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