Please select all the true statements about the mucociliary escalator Please select all the TRUE statements about the mucociliary escalatoc.Mucus is produced by speciallined cells called pobiet cells. The cila of the mucocliary escalator beat randomly to move mucus. The mucus produced by the respiratory eplthelim is an adaptive response to inchaled microber: People sutlering from viral infections of the upper respiratory tract are at incoeased risk of iower netipinatory fact infections. Mucus is propelled downward, toward the lungh.