Root of lungs
Lungs are a vital organ in the human body responsible for breathing and supplying oxygen to the rest of the body. Located in the chest, the lungs are made up of bronchioles and alveoli, which work together to exchange oxygen and carbon dioxide. The lungs are protected by the rib cage and are able to expand and contract with the help of the diaphragm and intercostal muscles. Proper lung function is essential for overall health and wellbeing, and can be improved through regular exercise and avoiding harmful substances such as tobacco smoke.