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. 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 Sun protection for all children Understanding your sunscreen The science behind cosmeceuticals Do you know these 5 facts about skincare?