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Pyramidal process of palatine bone

Pyramidal process of palatine bone
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Medial wall of left orbit. (Pyramidal process of palatine labeled at bottom right.)
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Left palatine bone. Posterior aspect. Enlarged. (Pyramidal process labeled at bottom left.)
Details
Latin processus pyramidalis ossis palatini
Identifiers
Gray's p.168
Dorlands
/Elsevier
p_34/12667617
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Anatomical terms of bone

The pyramidal process of the palatine bone projects backward and lateralward from the junction of the horizontal and vertical parts, and is received into the angular interval between the lower extremities of the pterygoid plates.

On its posterior surface is a smooth, grooved, triangular area, limited on either side by a rough articular furrow. The furrows articulate with the pterygoid plates, while the grooved intermediate area completes the lower part of the pterygoid fossa and gives origin to a few fibers of the Pterygoideus internus.

The anterior part of the lateral surface is rough, for articulation with the tuberosity of the maxilla; its posterior part consists of a smooth triangular area which appears, in the articulated skull, between the tuberosity of the maxilla and the lower part of the lateral pterygoid plate, and completes the lower part of the infratemporal fossa.

On the base of the pyramidal process, close to its union with the horizontal part, are the lesser palatine foramina for the transmission of the posterior and middle palatine nerves.

Additional images

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links


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