Final answer:
All of the above The nose plays several roles in respiratory processes: it filters, purifies, and conditions the air entering our respiratory system by warming, humidifying, and trapping particles, making all of the above options correct answers.
Step-by-step explanation:
The nose plays several critical roles in the body's respiratory process. It acts as a filter for the air we breathe, trapping particles and preventing them from reaching the lungs. Moreover, the nose also warms and humidifies the air, ensuring that it does not damage the delicate tissues in the lungs. In summary, the nose filters air, purifies air, and conditions the air, making all of the above choices correct.
In addition, the nasal cavity, as part of the upper respiratory tract, includes structures that increase its surface area, boosting its ability to warm and humidify the air. The mucous membranes and hairs in the nasal cavity also enhance the filtering process. Additionally, nasal breathing is more beneficial than mouth breathing because it filters, warms, and moistens the air more effectively.