Revision 8 for 'Greater palatine nerve'All Revisions
Greater palatine nerve
The greater palatine nerve divides off the maxillary division just after emerging from the foramen rotundum to enter the pterygopalatine fossa. At the pterygopalatine ganglion receives parasympathetic fibres which supply palatine mucosal glands as well as special sensory fibres (taste) for the which arrive at the ganglia via the greater petrosal nerve.
It leaves the fossa inferiorly through the greater palatine canal, and when its the canal gives off the lateral posterior inferior nasal nerve. The greater palatine nerve then emerges from the canal through the greater palatine foramen and curves anteriorly to run along on the undersurface of the hard palate which it may groove. It supplies the mucosa of the posterior hard palate.
According to some authors, it may give off a sensory branch to the medial wall of the maxillary sinus.