Palatine bone
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2008-05-17T09:42:04Z
VolkovBot
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robot Adding: [[gl:Palatino]]
{{Infobox Bone |
Name = Palatine bone |
Latin = |
GraySubject = 41 |
GrayPage = 166 |
Image = Gray996.png |
Caption = Permanent teeth of upper dental arch, seen from below. (Horizontal part of palatine bone visible at bottom.) |
Image2 = Gray194.png |
Caption2 = Sagittal section of skull. (Palatine bone is labeled at bottom left.) |
System = |
Precursor = |
MeshName = Palatine+Bone |
MeshNumber = A02.835.232.781.324.502.660 |
DorlandsPre = |
DorlandsSuf = |
}}
The '''palatine bone''' is a [[bone]] in the [[palate]] (Latin ''palatum''; unrelated to ''palatium'' 'palace', from which other senses of [[palatine]] derive).
==Anatomy==
It is situated at the back part of the [[nasal cavity]] between the [[maxilla]] and the pterygoid process of the [[Sphenoid bone|sphenoid]].
It contributes to the walls of three cavities: the floor and lateral wall of the nasal cavity, the roof of the mouth, and the floor of the orbit; it enters into the formation of two fossæ, the [[Pterygopalatine fossa|pterygopalatine]] and [[pterygoid]] fossæ; and one fissure, the [[inferior orbital fissure]].
The palatine bone somewhat resembles the letter L, and consists of a [[Horizontal plate of palatine bone]] and a [[Perpendicular plate of palatine bone]] and three outstanding processes—viz., the [[Pyramidal process of palatine bone]], which is directed backward and lateralward from the junction of the two parts, and the [[Orbital process of palatine bone]] and [[Sphenoidal process of palatine bone]], which surmount the vertical part, and are separated by a deep notch, the sphenopalatine notch.
=== Articulations ===
The palatine articulates with six bones: the [[sphenoid]], [[ethmoid]], [[maxilla]], [[inferior nasal concha]], [[vomer]] and opposite palatine.
==Additional images==
<gallery>
Image:Orbital_bones.png|The seven bones which articulate to form the orbit.
Image:Gray167.png|Articulation of left palatine bone with maxilla.
Image:Gray187.png|Base of skull. Inferior surface.
Image:Gray191.png|Horizontal section of nasal and orbital cavities.
Image:Gray192.png|Medial wall of left orbit.
Image:Gray196.png|Roof, floor, and lateral wall of left nasal cavity.
</gallery>
== See also ==
*[[Hard palate]]
*[[Bone#Terminology|Bone terminology]]
*[[Terms for anatomical location]]
==Sources and references==
{{Gray's}}
{{OrbitalBones}}
{{Facial bones}}
{{anatomy-stub}}
[[Category:Skeletal system]]
[[Category:Skull]]
[[ar:عظم حنكي]]
[[de:Gaumenbein]]
[[es:Palatino (hueso)]]
[[fr:Os palatin]]
[[gl:Palatino]]
[[it:Osso palatino]]
[[la:Os palatinum]]
[[lv:Aukslēju kauls]]
[[lt:Gomurikaulis]]
[[nl:Os palatinum]]
[[ja:口蓋骨]]
[[pl:Kość podniebienna]]
[[pt:Osso palatino]]
[[sk:Podnebná kosť]]
[[sl:Nebnica]]
[[sr:Непчана кост]]
[[uk:Піднебінна кістка]]
[[zh:腭骨]]