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Soft palate - Revision history
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==Overview==<br />
{{Infobox Anatomy |<br />
Name = {{PAGENAME}} |<br />
Latin = palatum molle, velum palatinum |<br />
GraySubject = 242 |<br />
GrayPage = 1112 |<br />
Image = Tonsils diagram.jpg |<br />
Caption = |<br />
Image2 = Gray855.png |<br />
Caption2 = Lateral wall of nasal cavity. (Soft palate visible in lower right) |<br />
Precursor = |<br />
System = |<br />
Artery = [[lesser palatine arteries]], [[ascending palatine artery]] |<br />
Vein = |<br />
Nerve = [[pharyngeal branch of vagus nerve]], [[medial pterygoid nerve]] |<br />
Lymph = |<br />
MeshName = Soft+Palate |<br />
MeshNumber = A14.549.617.780 |<br />
DorlandsPre = p_02 |<br />
DorlandsSuf = 12607540 |<br />
}}<br />
{{SI}}<br />
The '''soft palate''' (or '''velum''', or '''muscular palate''') is the soft [[biological_tissue|tissue]] constituting the back of the roof of the [[mouth]]. The soft palate is distinguished from the [[hard palate]] at the front of the mouth in that it does not contain bone.<br />
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==Function==<br />
It is movable, consisting of [[muscle]] fibers sheathed in [[mucous membrane]], and is responsible for closing off the [[Respiratory system|nasal passages]] during the act of [[swallowing]]. <br />
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The soft palate's motion during breathing is responsible for the sound of [[snoring]]. Touching the soft palate evokes a strong [[Gag reflex|gag response]] in most people.<br />
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The soft palate also functions during speech to separate the oral cavity (mouth) from the [[nose]], in order to produce the oral speech sounds. If this separation is incomplete, air escapes through the nose during speech and the speech is perceived as hypernasal.<br />
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==Muscles of soft palate==<br />
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{| class="wikitable"<br />
| '''Muscle''' || '''Action''' || '''Nerve''' <br />
|- <br />
| [[levator veli palatini]] || [[deglutition]] || [[vagus]]<br />
|- <br />
| [[tensor veli palatini]] || [[deglutition]] || [[mandibular nerve]]<br />
|- <br />
| [[palatoglossus]] || [[Respiration (physiology)|respiration]] || [[vagus]]<br />
|- <br />
| [[palatopharyngeus]] || [[Respiration (physiology)|respiration]] || [[vagus]]<br />
|- <br />
| [[musculus uvulae]] || moves [[palatine uvula|uvula]] || [[vagus]]<br />
|}<br />
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==Additional images==<br />
<gallery><br />
Image:Uvula without tonsils.jpg|Soft palate without tonsils (after [[tonsillectomy]])<br />
Image:Illu mouth.jpg|Mouth (oral cavity)<br />
Image:Illu03 mouth.jpg|Mouth<br />
Image:Gray994.png|Sagittal section of nose mouth, pharynx, and larynx.<br />
Image:Gray1014.png|The mouth cavity. The cheeks have been slit transversely and the tongue pulled forward.<br />
</gallery><br />
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==See also==<br />
* [[Hard palate]]<br />
* [[Palate]]<br />
* [[Tonsil]]<br />
* [[Palatine uvula]]<br />
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==External links==<br />
* {{FPnotebook|DEN4}}<br />
* [http://images.webmd.com/images/hw/media65/medical/hw/nd551248.jpg Image at WebMD]<br />
* {{SUNYAnatomyFigs|34|01|03}} - "Diagram of the regions of the oral cavity."<br />
* {{eMedicineDictionary|Soft+palate}}<br />
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{{Head and neck general}}<br />
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[[Category:Mouth]]<br />
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[[de:Gaumensegel]]<br />
[[fr:Voile du palais]]<br />
[[he:וילון (אנטומיה)]]<br />
[[ko:연구개]]<br />
[[ru:Мягкое нёбо]]<br />
[[sv:Mjuka gommen]]<br />
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{{WH}}<br />
{{WikiDoc Sources}}</div>
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