The exchange of gases in the human lungs occurs through the
A) bronchi.
B) alveoli.
C) bronchioles.
D) tracheas.
E) glottis.

Question

Quizplus · Accepted Answer

The exchange of gases (oxygen and carbon dioxide) in the human lungs occurs through the alveoli, which are small sacs located at the end of the bronchioles. The bronchi and bronchioles are responsible for transporting air to and from the alveoli, while the trachea is the windpipe that connects the larynx to the bronchi. The glottis is the opening between the vocal cords in the larynx, which allows air to pass through during breathing. Therefore, the best choice for the exchange of gases in the human lungs is B, alveoli.

The Exchange of Gases in the Human Lungs Occurs Through