Home > Medical > COPD > The lungs The lungs All sections in COPD » About COPD » COPD and Medication » FAQs » Living with COPD » COPD News » Smoking » The Lungs How the lungs work They supply us with oxygen and are part of the body's defense system. We don't even think about breathing. But if you can't breathe, nothing else matters. What is a tracheotomy? A tracheotomy is a surgical procedure in which an incision is made in the front of the patient's neck and a breathing tube is inserted through a hole into the trachea. The lungs of the unborn baby The lungs of the foetus is different to the other organs, such as the kidneys, the heart and the liver, all of which already start functioning inside the womb. Subscribe to the Newsletter » Join us on Facebook » Ask Stop Smoking Expert » Ask CyberDoc » Anti-Tobacco Art load more articles advertisement From our sponsors Your retirement - a healthy mindset So many people, why so alone? You can still enjoy the sweet things in life Take the sugar test, it could save your life.