The respiratory system is the organ that transports air and essential elements to the body. The structure of the respiratory system: nose, mouth, throat, larynx, lungs. Diseases that can affect the respiratory system: there is acute respiratory infection, transient diseases that can be treated, there are also chronic diseases; flu, covid-19, tuberculosis, asthma, destruction of cells in the lungs, mucus, water in the lungs are some of the most common. The causes of the disease: attacks by viruses and bacteria, fine dust in the house, air pollution in the environment that may contain chemical elements, cigarette smoke and many others...