Question

What respiratory system changes occur when someone quits smoking?
(1 point)
Cilia always function abnormally.
Tar in the air passages dissolves.
Cilia regain normal function.
Tar continues to form.

Answer 1

When someone quits smoking, one of the key changes that occurs in the respiratory system is that **cilia regain normal function**. This recovery allows for improved clearance of mucus and debris from the airways, leading to better overall respiratory health.