The Respiratory System Flashcards

1
Q

What is the mucociliary escalator?

A

Protective mechanism involving cilia of the mucous membranes of the respiratory system; transports mucus containing inhaled pollutants to the pharynx where the mucus can be swallowed or expectorated

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2
Q

What is the only external portion of the respiratory system?

A

The nose

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3
Q
A
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