There are 2 nasal cavities divided by a midline nasal septum
Within each cavity, on the lateral wall, there are three curved shelves of bone (turbinates/conchae)
These conchae help form four meatuses - spaces for air to flow through
Inferior nasal meatus - between inferior concha and nasal floor
Middle nasal meatus - between middle and inferior concha
Superior nasal meatus - between superior and middle concha
Sphenoethmoidal recess - between the nasal roof and superior concha
At the anterior aspect of the nasal cavity is the nasal vestibule - this protrudes as the nose
The largest part of the nasal cavity is the respiratory region which is rich in neurovascular tissue and lined with respiratory epithelium which helps alter air to be more suitable
At the superior aspect of the nasal cavity is the olfactory region which is where the olfactory nerves and epithelium are present - these create our sense of smell
