The respiratory tract is protected from pathogens and foreign particles by both mucus membranes and cilia.

Question

Quizplus · Accepted Answer

The mucus membranes and cilia work together to trap and eliminate foreign particles and pathogens from the respiratory tract. The mucus membranes produce mucus that traps particles, while the cilia move the trapped particles up and out of the respiratory tract, where they can be coughed out or swallowed.

The Respiratory Tract Is Protected from Pathogens and Foreign Particles