What is a disadvantage to breathing through the mouth during exercise?
a. increased rate of inspiration
b. increased depth of ventilation
c. decreased oxygen absorption
d. inability to filer air of airborne particles and irritants
Answer: d. inability to filter air of airborne particles and irritants
A disadvantage to breathing through the mouth during exercise is the inability to filer air of airborne particles and irritants. Though mouth breathing does allow quicker respiration rate and deeper ventilation, the nose is able to warm and filter the air using cilia that line the passageway.