bron
chiole
复数形式
bronchioles
1
细支气管, 小气道
a small airway in the respiratory system that leads from the bronchi to the alveoli in the lungs
A bronchiole refers to a part of the respiratory system in the human body that plays a crucial role in the distribution of air to the alveoli. They are smaller branches of the bronchi, and their walls are composed of smooth muscle, allowing them to regulate airflow and control the amount of oxygen reaching the lungs. The bronchioles serve as a conduit for air, facilitating efficient gas exchange and maintaining proper respiratory function.