Sphenopalatine foramen opens into which wall of pterygopalatine fossa?
Sphenopalatine foramen opens into the medial wall of pterygopalatine fossa. It opens into the nasal cavity and transmits sphenopalatine aery and nasopalatine nerve.Pterygopalatine fossa boundaries:Anterior wall: posterior surface of maxilla posterior wall of maxillary sinus.Posterior wall: formed by pterygoid process and greater wing of sphenoid. Openings in it are foramen rotundum, pterygoid canal and pterygopalatine canal.Medial wall: formed by perpendicular plate of the palatine.Lateral wall is open.Roof: greater wing and body of the sphenoid. Opening is inferior orbital fissure.Floor: fusion of the maxilla and pterygoid process of the sphenoid. Opening is greater palatine foramen.
Lateral wall
Medial wall
Superior wall
Inferior wall