bronchiole

• 肺内细小的支气管分支，末端与肺泡相连，是气体进出肺泡的通道。

Any of the smallest bronchial ducts that end in the alveoli of the lungs.

1. Small airway in the lungsC1formalmedical

   Any of the small, thin-walled branches of the bronchial tubes that lead to the alveoli, where gas exchange occurs.

   肺内小气道

   • The bronchioles are responsible for carrying air to the alveoli.
   • In asthma, the bronchioles can constrict, making breathing difficult.
   • The infection spread to the bronchioles, causing bronchiolitis.
   • Each bronchiole ends in a cluster of tiny air sacs called alveoli.