The trachea divides to form which structures?

The trachea divides to form which structures?

• A. Bronchioles
• B. Alveoli
• C. Bronchi
• D. Pleura

Answer: (C)

The trachea divides into the right and left primary bronchi at the carina. These bronchi are the first major branches that carry air into each lung, and they then split further into smaller bronchi and, later, bronchioles as part of the branching airway tree. The alveoli are the tiny air sacs at the ends of the bronchioles where gas exchange occurs, not direct divisions of the trachea. The pleura is a surrounding membrane of the lungs, not part of the airway branching. So the trachea divides to form bronchi.

The trachea divides into the right and left primary bronchi at the carina. These bronchi are the first major branches that carry air into each lung, and they then split further into smaller bronchi and, later, bronchioles as part of the branching airway tree. The alveoli are the tiny air sacs at the ends of the bronchioles where gas exchange occurs, not direct divisions of the trachea. The pleura is a surrounding membrane of the lungs, not part of the airway branching. So the trachea divides to form bronchi.