Description:
A. Frontal sinus B. Maxillary sinus C. Ethmoid sinus D. Sphenoid sinus E. Nasolacrimal duct F. Pterygopalatine ganglion (in pterygopalatine fossa) G. Greater palatine nerve H. Genioglossus muscle I. Geniohyoid muscle J. Mylohyoid muscle K. Salpingopharyngeal fold L. Velum M. Uvula N. Opening of sphenoid sinus