If the irritation is severe enough, a sleeping person will arouse, clear the airway, then resume breathing and likely return to sleep.

如果刺激足够剧烈，睡着的人就会醒来并清理气道，恢复呼吸，并很可能再度陷入睡眠中。

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Finally, the coughing reflex in reaction to irritants in the airway produces not a cough during sleep but a cessation of breathing.

最后，对呼吸道刺激物的咳嗽反射不会导致人们在睡眠期咳嗽，而会造成呼吸暂停。

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Healthy lungs produce a natural antibiotic that protects them from infection by routinely killing harmful bacteria on airway surfaces.

健康的肺部会产生一种天然的抗生素，通过杀死呼吸道表面的有害细菌来保护肺部不受感染。

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For a choking victim who is unconscious with no heartbeat, clear the airway first.

VOA: special.2009.08.11

"If you were to design the perfect plug for a child's airway, you couldn't do much better than a hot dog tip."

VOA: standard.2010.02.23

"This is a gum ball, same shape and size, poses the same threat to a child's airway.

VOA: standard.2010.02.23

It was interesting that while the signs and symptoms of a heart attack were unknown to them, maintaining the airway of a patient with gunshot wounds was second nature.

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These include a small ultrasound probe that can be used to scan for internal injuries such as fluid in the abdomen or internal bleeding, and a video laryngoscope, which can be used to view and open a patient's airway by inserting a tube a tricky and potentially dangerous procedure.

ECONOMIST: Emergency medicine

Sleep apnea is commonly treated with a "continuous positive airway pressure, " or CPAP, machine worn at night to keep the airway open.

WSJ: A Test for Sleep Apnea From Your Own Bedroom