frontal bone
frontal sinus
nasal bone
septal cartilage
vomeronasal cartilage
perpendicular plate of ethmoid
sphenoid sinus
vomer
palate
pharyngeal orifice of eustachian tube
frontal sinus
nasal bone
septal cartilage
vomeronasal cartilage
perpendicular plate of ethmoid
sphenoid sinus
vomer
palate
pharyngeal orifice of eustachian tube