The ciliary escalator allows unwanted particles to be swept __________.

Question

Quizplus · Accepted Answer

The ciliary escalator refers to the coordinated movement of ciliated cells lining the respiratory tract that moves mucus and particles upward to the throat, where they are usually swallowed and expelled. This helps to prevent unwanted particles from entering the lungs. Therefore, the correct choice is D, which states that the unwanted particles are swept upward to the throat, where they are usually swallowed.

The Ciliary Escalator Allows Unwanted Particles to Be Swept __________