Smoking destroys the cilia in the respiratory passageways. This

Question

Smoking destroys the cilia in the respiratory passageways. This (A) makes it harder to move air in and out of the lungs. (B) decreases the surface area for respiration. (C) slows blood flow through lung blood vessels. (D) makes it harder to keep the lungs clean.

Tardigrade Admin · Accepted Answer

Debris normally gets trapped in mucus lining the respiratory passage ways. This mucus is then swept up and away from the lungs by the action of cilia.

Q. Smoking destroys the cilia in the respiratory passageways. This

makes it harder to move air in and out of the lungs.

decreases the surface area for respiration.

slows blood flow through lung blood vessels.

makes it harder to keep the lungs clean.

Debris normally gets trapped in mucus lining the respiratory passage ways. This mucus is then swept up and away from the lungs by the action of cilia.