With the nasal septum removed from the midline, the contents of the nasal cavity are exposed. Find the dorsal nasal concha (1) and the ventral nasal concha (2). The conchae divide nasal cavity space into a dorsal nasal meatus (3), a middle nasal meatus (4), and a ventral nasal meatus (5). The nasolacrimal duct opens (6) on the rostromedial surface of the alar fold (7), an extension of the ventral concha into the nose. Olfactory epithelium is found on the ethmoidal labyrinth (8), located caudally in the nasal cavity.

Also observe: frontal sinus (9), opening of the auditory tube (10), palatine tonsil (11), and soft palate (12).

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