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The velopharyngeal port or velopharyngeal sphincter is the passage between the nasopharynx and the oropharynx. It is closed off by the soft palate and uvula against the rear pharyngeal wall during swallowing to prevent food and water from entering the nasal passages. During speech, it is open for nasal sounds and closed for oral
Velopharyngeal insufficiency is a disorder of structure that causes a failure of the velum (soft palate) to close against the posterior pharyngeal wall (back wall of the throat) during speech in order to close off the nasal cavity during oral speech production.
Velopharyngeal insufficiency or incompetency are related labels for this phenomenon, in addition to most common generic- velopharyngeal inadequacy. Velopharyngeal insufficiency is the inability of the velopharyngeal sphincter to sufficiently separate the nasal cavity from the oral cavity during speech .
The velopharyngeal fricatives, also known as the posterior nasal fricatives, are a family of sounds sound produced by some children with speech disorders, including some with a cleft palate, as a substitute for sibilants (in English, /s, z, ʃ, ʒ, tʃ, dʒ, tr, dr/), which cannot be produced with a cleft palate. It results from "the ...
The turbulence in the airflow characteristic of fricatives is produced not in the mouth but at the anterior nasal port, the narrowest part of the nasal cavity. (Turbulence can also be produced at the posterior nasal port, or velopharyngeal port, when that port is narrowed – see velopharyngeal fricative. With anterior nasal fricatives, the ...
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Anatomy scan of the fetal head at 20 weeks of pregnancy in a fetus affected by spina bifida. In the axial scan the characteristic lemon sign and banana sign are seen. Anatomy scan with power bi-directional colour Doppler of both fetal kidneys at 18 weeks of pregnancy to detect renal agenesis. The videoclip shows a frontal scan with normal renal ...
Two weeks after announcing that baby No. 2 was on the way, Whitney Port suffered a pregnancy loss. Rebel Wilson and More Stars Share Their Fertility Struggles Read article “It’s not good news ...