Bronchi, Primary

Bronchi, Secondary

Bronchi, Tertiary


Bronchus, Primary

Bronchus, Secondary

Bronchus, Tertiary

Primary Bronchi

Primary Bronchus

Secondary Bronchi

Secondary Bronchus

Tertiary Bronchi

Tertiary Bronchus

The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.