pterygopalatine groove


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great·er pal·a·tine groove

[TA]
a groove on both the body of the maxilla and the perpendicular plate of the palatine bone; when the bones are articulated, the grooves form the greater palatine canal.

pterygopalatine groove

The groove on the maxillary surface of the perpendicular portion of the palatine bone that, with corresponding grooves on the maxilla and pterygoid process of the sphenoid, transmits the palatine nerve and descending palatine artery.
See also: groove