The Tiniest Bronchiole Extensions Open into The

Question

The tiniest bronchiole extensions open into the
A)trachea.
B)bronchi.
C)alveoli.
D)pharynx.

Accepted Answer

The smallest bronchiole extensions lead into the alveoli, the tiny air sacs in the lungs where gas exchange takes place between the air and blood. The trachea, bronchi, and pharynx are all larger air passages that lead to and from the lungs. Therefore, option A, B, and D are not correct.