What is the bronchial tree?
In your lungs, each bronchial tube branches into a maze of smaller and smaller tubes. Tiny hairs inside (cilia) help trap dust and germs that you cough up, sneeze out, or swallow. The smallest tubes are called bronchioles. These end in tiny air sacs called alveoli. This is where your lungs deliver oxygen to your blood and take back carbon dioxide. Doctors call this system of tubes and sacs the bronchial tree.
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
This tool does not provide medical advice. See additional information.