The bronchioles are the first airway branches that no longer contain cartilage. They are branches of the bronchi, and are smaller than one millimeter in diameter.
The bronchioles or bronchioli, the first airway branches that no longer contain cartilage
Bronchioles are smallest unit of trachea and helps in taking fresh air to lungs alveoli and tkaking co2 to expire out
in the foot
dilates bronchioles so the person can breathe more easily