Bronchioles Diagram diagram and chart - Human body anatomy diagrams and charts with labels. This diagram depicts Bronchioles Diagram. Human anatomy diagrams show internal organs, cells, systems, conditions, symptoms and sickness information and/or tips for healthy living. This body anatomy diagram is great for learning about human health, is best for medical students, kids and general education.

Bronchioles Diagram

The bronchioles are tubes in the lungs which branch off from the larger bronchi that enter each lung, from the large and singular trachea which connects to the mouth.

As air is inhaled, it is drawn into the trachea and enters the main bronchus. The main bronchus then divides into two bronchi (one for each lung) which continue to subdivide before becoming bronchioles. As the bronchioles progressively fan out, literally like branches of a tree, they are each capped with an alveolus.

The trachea, bronchi, bronchioles, and alveoli all make up the lower respiratory tract. Each lung has around 30,000 bronchioles.