A patient is concerned about his inability to speak clearly due to an infection in the upper respiratory system. Which of the following structures serve as the patient's resonating chamber in speech?
A) Trachea
B) Pharynx
C) Paranasal sinuses
D) Larynx
Ans: C
Feedback: The paranasal sinuses serve as a resonating chamber in speech. The trachea is also known as the windpipe and serves as the passage between the larynx and the bronchi. The pharynx is a tubelike structure that connects the nasal and oral cavities to the larynx. The pharynx also functions as a passage for the respiratory and digestive tracts. The major function of the larynx is vocalization through the function of the vocal cords. The vocal cords are ligaments controlled by muscular movements that produce sound.
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