What is the name given to the action produced by the forward stroking of millions of cilia?
a. Coughing
b. Mucociliary escalator
c. Mucus stroking
d. The wave
ANS: B
The stroking action of millions of cilia propels the surrounding mucus at a speed approximately 2 cm/min. This action is commonly referred to as the mucociliary escalator.
Health Professions
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