Cough: The coughing mechanism is used to expel from the lungs and trachea as well as the back of your throat the mucus and debris to your mouth. Then you can either spit it out or swallow it.
Answered 9/23/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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