Question

As the bronchus divides into smaller bronchioles, the terminal ends of these smaller passages form the:

A. capillaries.
B. alveoli.
C. pleura.
D. bronchi.

Answer 1

Answer: B. Alveoli is correct.

Explanation: Alveoli are tiny air sacks where the bronchioles end. This is where the exchange of oxygen and carbon dioxide in the blood happens.

Answer 2

B. Alveoli.

Step-by-step explanation:

As the bronchus divides into smaller bronchioles, the terminal ends of these smaller passages form the alveoli.

Hope this helps!