Identify functions of airway mucus in the normal lung.
1) Increased mucus production decreases bronchospasm.
2) Protect the airways from excessive water loss.
3) Shield the airway from toxic particles.
4) Trap inhaled contaminants.
A)1, 2, and 3 only
B)2, 3, and 4 only
C)1 and 4 only
D)3 and 4 only

Question

Quizplus · Accepted Answer

Airway mucus serves to protect the airways from excessive water loss, shield the airway from toxic particles, and trap inhaled contaminants, making options 2, 3, and 4 correct. Increased mucus production does not decrease bronchospasm; rather, it can contribute to airway obstruction in conditions like asthma.

Identify Functions of Airway Mucus in the Normal Lung