Greater palatine canal
|Greater palatine canal|
Left palatine bone. Posterior aspect. Enlarged. (Pterygopalatine canal labeled at center left.)
Left maxillary sinus opened from the exterior. (Label "Probe in pterygopalatine canal" at center right.)
|Latin||canalis palatinus major|
The greater palatine canal (or pterygopalatine canal) is a passage in the skull that transmits the descending palatine artery, vein, and greater and lesser palatine nerves between the pterygopalatine fossa and the oral cavity.
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.