What are the large branches that come off the trachea and enter the lungs called?

The large branches that come off the trachea and enter the lungs are known as bronchi. These structures serve as the main passageways that direct air from the trachea into the lungs, dividing into smaller branches that continue to facilitate airflow. Each bronchus then further divides into progressively smaller tubes called bronchioles, which ultimately lead to the alveoli, where gas exchange occurs.

Understanding the significance of bronchi is crucial as they play an essential role in the respiratory system, allowing for the effective distribution of air throughout the lungs. Their structure and function are vital in maintaining efficient ventilation and oxygenation of the blood.