Pterygoid fossa

Pterygoid fossa

Infobox Bone
Name = Pterygoid fossa
Latin = f. pterygoidea ossis sphenoidalis
GraySubject = 35
GrayPage = 151



Caption = Sphenoid bone. Upper and posterior surfaces. (Pterygoid fossa labeled at left.)


Caption2 =
System =
Precursor =
MeshName =
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DorlandsPre = f_14
DorlandsSuf = 12376565
The pterygoid fossa is an anatomical term for the fossa formed by the divergence of the lateral pterygoid plate and the medial pterygoid plate of the sphenoid bone.

tructure

The lateral and medial pteryoid plates (of the pterygoid process of the sphenoid bone) diverge behind and enclose between them a V-shaped fossa, the pterygoid fossa. This fossa faces posteriorly, and contains the medial pterygoid muscle and the tensor veli palatini muscle.

ee also

* Pterygoid fovea
* Scaphoid fossa
* Pterygoid process


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  • pterygoid fossa — n a V shaped depression on the posterior part of each pterygoid process that is formed by the divergence posteriorly of its medial and lateral pterygoid plates and that contains the medial pterygoid muscle and the tensor veli palatini …   Medical dictionary

  • pterygoid fossa — noun 1. : a depression on the outer and posterior aspect of the pterygoid process of the sphenoid bone 2. : a depression on the lower jawbone for the insertion of the external pterygoid muscle …   Useful english dictionary

  • pterygoid plate — n either of two vertical plates making up a pterygoid process of the sphenoid bone: a) a broad thin plate that forms the lateral part of the pterygoid process and gives attachment to the lateral pterygoid muscle on its lateral surface and to the… …   Medical dictionary

  • Pterygoid — Pter y*goid, a. [Gr. ?, ?, a wing + oid.] (Anat.) (a) Like a bird s wing in form; as, a pterygoid bone. (b) Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone. n. A pterygoid bone. [1913… …   The Collaborative International Dictionary of English

  • Pterygoid bone — Pterygoid Pter y*goid, a. [Gr. ?, ?, a wing + oid.] (Anat.) (a) Like a bird s wing in form; as, a pterygoid bone. (b) Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone. n. A pterygoid… …   The Collaborative International Dictionary of English

  • Pterygoid process — Pterygoid Pter y*goid, a. [Gr. ?, ?, a wing + oid.] (Anat.) (a) Like a bird s wing in form; as, a pterygoid bone. (b) Of, pertaining to, or in the region of, the pterygoid bones, pterygoid processes, or the whole sphenoid bone. n. A pterygoid… …   The Collaborative International Dictionary of English

  • Pterygoid processes of the sphenoid — Infobox Bone Name = PAGENAME Latin = processus pterygoideus ossis sphenoidalis GraySubject = 35 GrayPage = 151 Caption = Sphenoid bone, upper surface. Caption2 = Sphenoid bone, anterior and inferior surfaces. Width = 300 MusclesOrigins =… …   Wikipedia

  • fossa pterygoidea — [TA] pterygoid fossa: the posteriorly facing fossa which is formed by the divergence of the medial and lateral pterygoid plates of the sphenoid bone, and lodges the origins of the internal pterygoid muscle and tensor veli palatini muscle …   Medical dictionary

  • Pterygoid fovea — Infobox Bone Name = Pterygoid fovea Latin = fovea pterygoidea GraySubject = GrayPage = Caption = Medial side of mandible. (Pterygiod fovea not labelled, but indicated as the insertion for the pterygoideus externus on the upper left.) System =… …   Wikipedia

  • fossa — A depression usually more or less longitudinal in shape below the level of the surface of a part. [L. a trench or ditch] acetabular f. [TA] a depressed area in the floor of the acetabulum superior to the …   Medical dictionary

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