Which of the following is located medial to the third molar, at the junction of the maxilla and the horizontal plate of the palatine bone?

Greater palatine foramen, one on each side, lies behind the palatomaxillary suture of maxilla. Its location is medial to maxillary 3rd molar, at the junction of maxilla and horizontal plate of palatine bone. Greater palatine foramen transmits greater palatine vessels, anterior palatine nerve, both of which runs forward in the groove from foramen towards incisive fossa. Greater palatine nerve block is clinically useful for dental procedures, involving palatal soft tissues distal to the canine.