The nurse educates the client about the major functions of the nose and sinuses. Which structure is specifically responsible for filtering, moistening, and warming air that enters the lower portion of the respiratory tract?
1. Olfactory cells.
2. Columella.
3. Turbinates.
4. Nares.
Correct Answer: 3
The superior, middle, and inferior turbinates are specifically responsible for warming, moistening, and filtering the air before it enters the trachea and lungs. The olfactory cells assist the client to smell. The columella is located at the base of the nose and helps form the nares. The nares are structures that lead into the internal vestibule and nasal cavity.
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