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Pterygopalatine fossa

Pterygopalatine fossa

Infobox Bone
Name = Pterygopalatine fossa
Latin = fossa pterygopalatina
GraySubject = 41
GrayPage = 166


Caption = Left maxillary sinus opened from the exterior.


Caption2 = Old human skull with entrance to pterygopalatine fossa marked in purple
Precursor =
System =
Artery =
Vein =
Nerve =
Lymph =
MeshName =
MeshNumber =
DorlandsPre = f_14
DorlandsSuf = 12376574
The pterygopalatine fossa is a fossa in the skull. It is the indented area medial to the pterygomaxillary fissure leading into the sphenopalatine foramen.

Boundaries

It has the following boundaries:

* "anterior": superomedial part of the infratemporal surface of maxilla
* "posterior": root of the pterygoid process and adjoining anterior surface of the greater wing of sphenoid bone
* "medial": perpendicular plate of the palatine bone and its orbital sphenoidal processes
* "lateral": pterygomaxillary fissure
* "inferior": part of the floor is formed by the pyramidal process of the palatine bone.

Passages

The following passages connect the fossa with other parts of the skull:

Contents

The pterygopalatine fossa contains
* the pterygopalatine ganglion suspended by nerve roots from the maxillary nerve
* the third part of the maxillary artery
* the nerve of the pterygoid canal

ee also

* Pterygopalatine canal


=Additional

External links

* [http://iris3.med.tufts.edu/headneck/Pterygopalatine/ptwerygopalatinefossa.htm Image at tufts.edu]


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