How does the bronchial tree divide? - Answers

The bronchial tree divides into a series of branching airways that begin with the trachea, which bifurcates into the left and right primary bronchi. Each primary bronchus then divides into secondary (lobar) bronchi, which correspond to the lobes of the lungs—three on the right and two on the left. These secondary bronchi further branch into tertiary (segmental) bronchi, and this division continues into smaller bronchi and bronchioles, eventually leading to the alveoli where gas exchange occurs. This hierarchical structure allows for efficient airflow and distribution of air throughout the lungs.