The function of the "ciliary escalator" is to
A)propel inhaled dust and microorganisms away from the mouth,toward the lower respiratory tract.
B)remove microorganisms from the gastrointestinal tract.
C)remove microorganisms from the lower respiratory tract.
D)trap microorganisms in mucus in the upper respiratory tract.
E)trap inhaled dust and microorganisms in mucus and propel it away from the lower respiratory tract.

Question

Quizplus · Accepted Answer

The ciliary escalator is a mechanism in the respiratory system that traps inhaled dust and microorganisms in mucus and propels it away from the lower respiratory tract towards the throat, where it can be swallowed or expelled. This helps to keep the lower respiratory tract clear of pathogens and debris.

The Function of the "Ciliary Escalator" Is to