Final answer:
Yes, it is true that the nasal conchae increase air turbulence and mucosal surface area in the nasal cavity for enhanced warming, moisturizing, and trapping of particles and pathogens.
Step-by-step explanation:
The functions of the nasal conchae are indeed to enhance the air turbulence within the nasal cavity and to increase the mucosal surface area to which air is exposed. This leads to greater efficiency in warming and moisturizing the air, as well as in trapping particles and pathogens through mucus. The nasal conchae, including the superior, middle, and inferior nasal conchae, contribute to this process by swirling the incoming air and hosting respiratory epithelium lined with pseudostratified ciliated columnar epithelium. This epithelium is responsible for trapping debris with mucus produced by goblet cells and for sweeping it towards the throat with the help of cilia. The air is also warmed by capillaries situated beneath the epithelium and humidified by the conservation of water during exhalation.