Final answer:
The statement that nasal conchae primarily function during inhalation to warm and moisten air is true. The conchae increase the surface area of the nasal cavity for warming, humidifying, and trapping debris, while also playing a role in conserving water during exhalation.
Step-by-step explanation:
The statement that nasal conchae mainly work on inhalation to warm and moisten air and serve minor functions for exhalation is True. During inhalation, air enters the nasal cavity and passes over the conchae, which are bony structures. The function of the conchae in the nasal cavity is to increase surface area, which allows for more effective warming, humidification, and trapping of particulate matter through mucus and cilia.
The nasal conchae also help disrupt the flow of air as it enters the nose, ensuring that air bounces along the epithelium where it is cleaned and warmed, conserving water and preventing dehydration of the nasal epithelium by trapping water during exhalation. This warming happens by convection from the capillaries located just beneath the nasal epithelium. The mucus produced by goblet cells and cilia helps to trap and remove debris, and the respiratory epithelium contains enzymes and immune cells that provide additional protection.