Which of these are tiny air sacs surrounded by capillaries where gas exchange occurs?
A) Bronchioles
B) Alveoli
C) Pleura
D) Cilia
E) Bronchi

Question

Quizplus · Accepted Answer

Alveoli are the tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place. They are surrounded by a network of capillaries, facilitating the gas exchange process essential for respiration.

Which of These Are Tiny Air Sacs Surrounded by Capillaries