Answer:
Create turbulence in the air to trap particulate matter in mucus
Explanation:
Turbinate or turbinal are the alternative names for the nasal conchae. These are bony elements that form the upper chambers of the nasal cavity.
In human beings, the nasal conchae form grooves in the nasal passage due to which the inhaled air is forced to flow in a steady and regular pattern and come into the contact of largest possible area of the nasal mucosal surface. The particulate matter present in the inhaled air is trapped here by the mucus.