and intertitles to illustrate human anatomy and physiology. Beginning with the organs of respiration, it highlights the structure and function of the nose, larynx, trachea, bronchi, and lungs ...

Bronchus The trachea splits into a left and right bronchus (plural: bronchi), each leads to a lung. Bronchiole Each bronchus splits again and again into thousands of smaller tubes called ...

To better understand the condition, we should begin with a bit of anatomy ... each one is called a bronchus.) One of these branches leads to the left lung and the other to the right lung.