Question

What happens to the trachea before it reaches the lungs?

• A. It closes up so that no oxygen can escape.
• B. It branches into the right and left bronchioles.
• C. It branches into the right and left bronchi.
• D. It directly opens into the lung.

Answer 1

The correct option is C It branches into the right and left bronchi.

The trachea branches off into the right and left bronchi, which open into the right and left lungs respectively. Within the lung, each bronchus further divides into smaller bronchioles, that eventually open into the alveoli.