What is the Correct Order of Passageways, from Proximal to Distal

Question

What is the correct order of passageways, from proximal to distal?
A) terminal bronchiole, respiratory bronchiole, alveolar duct
B) terminal bronchiole, alveolar duct, respiratory bronchiole
C) respiratory bronchiole, terminal bronchiole, alveolar duct
D) alveolar duct, respiratory bronchiole, terminal bronchiole

Accepted Answer

The correct order of passageways from proximal (closest to the trachea) to distal (closest to the alveoli) in the respiratory system is terminal bronchiole, respiratory bronchiole, and then alveolar duct. This sequence reflects the branching pattern of the airways as they become finer and more specialized for gas exchange as they approach the alveoli.