Hard palate
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191091916
2008-02-13T07:11:33Z
Harris7
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/* Function */ rv edits by 74.104.26.180
{{Infobox Anatomy |
Name = {{PAGENAME}} |
Latin = palatum durum |
GraySubject = 38 |
GrayPage = |
Image = Illu mouth.jpg |
Caption = Mouth (oral cavity) |
Image2 = |
Caption2 = |
Precursor = |
System = |
Artery = [[greater palatine artery]] |
Vein = |
Nerve = [[greater palatine nerve]], [[nasopalatine nerve]] |
Lymph = |
MeshName = Hard+Palate |
MeshNumber = A02.835.232.781.324.502.660 |
DorlandsPre = p_02 |
DorlandsSuf = 12607528 |
}}
The '''hard palate''' is a thin horizontal [[bone|bony]] plate of the [[skull]], located in the roof of the mouth. It spans the arch formed by the upper [[teeth]].
It is formed by the [[palatine process of the maxilla]] and [[horizontal plate of palatine bone]].
It forms a partition between the nasal passages and the [[mouth]]. This partition is continued deeper into the mouth by a fleshy extension called the [[soft palate]].
==Function==
The interaction between the [[tongue]] and the hard palate is essential in the formation of certain [[Speech communication|speech]] sounds, notably /t/, /d/, /c/, and /{{IPA|ɟ}}/.
==Cleft==
In the [[birth defect]] called [[cleft palate]], the left and right portions of this plate are not joined, forming a gap between the mouth and nasal passage (a related defect affecting the face is [[cleft lip]]).
Cleft palate has a severe impact upon the ability to [[lactation|nurse]] and speak but is now cured through reconstructive [[surgery|surgical]] procedures at an early age (where such procedures are available).
==See also==
* [[Soft palate]]
* [[Palate]]
* [[Maxilla]]
* [[Head and neck anatomy]]
==Additional images==
<gallery>
Image:Illu03 mouth.jpg|Mouth
Image:Gray160.png|The bony palate and [[alveolar arch]].
Image:Gray187.png|Base of skull. Inferior surface.
Image:Gray194.png|Sagittal section of skull.
Image:Gray196.png|Roof, floor, and lateral wall of left nasal cavity.
Image:Gray771.png|Nerves of septum of nose. Right side.
Image:Gray855.png|Lateral wall of nasal cavity.
Image:Gray859.png|Coronal section of nasal cavities.
Image:Gray994.png|Sagittal section of nose mouth, pharynx, and larynx.
</gallery>
==External links==
* {{eMedicineDictionary|Hard+palate}}
* {{RocheLexicon|25420.000-1}}
{{Head and neck general}}
[[Category:Mouth]]
[[ar:حنك صلب]]
[[dv:ހަރު ތަލި]]
[[ko:경구개]]
[[pt:Palato duro]]