A large airway that leads from the trachea (windpipe) to a lung. The plural of bronchus is bronchi.

What is the singular form for bronchi?

noun Anatomy. the plural of bronchus.

What is the difference between bronchi and bronchioles?

Bronchi are the main passageway into the lungs. ... The bronchi become smaller the closer they get to the lung tissue and are then considered bronchioles. These passageways then evolve into tiny air sacs called alveoli, which is the site of oxygen and carbon dioxide exchange in the respiratory system.