what is the respiratory system

The respiratory system serves to absorb oxygen and eliminate carbon dioxide. It is made up of upper and lower airways and lungs where the exchange between air and blood takes place. There are countless pathologies that can affect it but the main ones are: bronchitis, pneumonia, bronchial asthma, COPD and lung cancer. Symptoms are often common: cough, wheezing, wheezing, chest pain, blood in the spit. A pneumological examination which includes allergy tests, spirometry, oximetry, thoracic ultrasound, allows us to understand the pathology and set a correct therapy.