Greater palatine canal

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Greater palatine canal
Gray169.png
Left palatine bone. Posterior aspect. Enlarged. (Pterygopalatine canal labeled at center left.)
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Left maxillary sinus opened from the exterior. (Label "Probe in pterygopalatine canal" at center right.)
Latin canalis palatinus major
Gray's subject #38 160
Dorlands/Elsevier c_04/12208755

The greater palatine canal (or pterygopalatine canal) is a passage in the skull that transmits the greater palatine artery, vein, and nerve between the pterygopalatine fossa and the oral cavity.

Structure

The greater palatine canal starts on the inferior aspect of the pterygopalatine fossa. It goes through the sphenoid and palatine bones to reach the palate, ending at the greater palatine foramen. From this canal, accessory canals branch off; these are known as the lesser palatine canals.

The canal is formed by a vertical groove on the posterior part of the maxillary surface of the palatine bone; it is converted into a canal by articulation with the maxilla.

The canal transmits the descending palatine vessels, and the anterior palatine nerve.

See also

Additional images

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.