What are four major areas air travels through your body?

Air travels through the body primarily via the respiratory system, with four major areas being: the nasal cavity, where air is filtered and humidified; the pharynx, which serves as a passageway for both air and food; the larynx, also known as the voice box, which helps in sound production; and the trachea, which leads to the bronchi and lungs, facilitating gas exchange. After reaching the lungs, oxygen is absorbed into the bloodstream while carbon dioxide is expelled.