Which of the following is NOT a function of the upper airway?

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Multiple Choice

Which of the following is NOT a function of the upper airway?

Explanation:
Gas exchange happens in the lungs, specifically in the alveoli, where oxygen moves into the blood and carbon dioxide leaves it. The upper airway isn’t where diffusion occurs; its job is to prepare air for the lungs. It warms inhaled air to body temperature, humidifies it to nearly 100% humidity, and filters out particles with mucus and cilia (plus nasal hairs) to protect the lower airways. Because of this conditioning role, gas exchange is not a function of the upper airway.

Gas exchange happens in the lungs, specifically in the alveoli, where oxygen moves into the blood and carbon dioxide leaves it. The upper airway isn’t where diffusion occurs; its job is to prepare air for the lungs. It warms inhaled air to body temperature, humidifies it to nearly 100% humidity, and filters out particles with mucus and cilia (plus nasal hairs) to protect the lower airways. Because of this conditioning role, gas exchange is not a function of the upper airway.

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