Question

S the molecule moves into the airways, the diameter of the airways get progressively smaller and the total cross-sectional surface area of the airways __________.

Option 1: Increases
Option 2: Decreases
Option 3: Stays the same
Option 4: Fluctuates

Answer 1

As the molecule moves into the airways, the diameter of the airways get progressively smaller and the total cross-sectional surface area of the airways decreases.

Step-by-step explanation:

As the molecule moves into the airways, the diameter of the airways get progressively smaller and the total cross-sectional surface area of the airways decreases. This is because the airways branch out into smaller and narrower passages, leading to a decrease in the overall surface area.