Best definition for trachea

The trachea, commonly known as the windpipe, is a crucial part of the respiratory system that serves as a conduit for air to travel between the larynx and the bronchi of the lungs. It is a flexible tube supported by C-shaped cartilaginous rings that prevent it from collapsing, allowing for efficient airflow. The trachea is lined with mucous membranes and cilia that help trap and expel foreign particles, ensuring that the air reaching the lungs is as clean as possible.