The Function of the ʺCiliary Escalatorʺ Is to

Multiple Choice

The function of the ʺciliary escalatorʺ is to

A) remove microorganisms from the lower respiratory tract.
B) propel inhaled dust and microorganisms toward the mouth, away from the lower respiratory tract.
C) trap inhaled dust and microorganisms in mucus and propel it away from the lower respiratory tract.
D) remove microorganisms from the gastrointestinal tract.
E) trap microorganisms in mucus in the upper respiratory tract.