The ends of alveolar ducts are termed as
-
bronchioles
-
trachea
-
bronchi
-
alveoli
D
Correct answer
Explanation
Alveoli are tiny ends of the alveolar ducts. These tiny air sacs function to exchange oxygen and carbon dioxide in the blood. Certain respiratory diseases cause a thickening of the alveoli walls, which restricts movement, causing breathing difficulties.