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
2
Q
What is the only external portion of the respiratory system?
A
The nose
3
Q
A