Compléter The Process of BreathingVersion en ligne Fill-in-the-blanks with the words given to you. par Martha Friggieri 1 nose cells alveoli lung bronchi trachea carbon exhaled diaphragm dioxide oxygen oxygen blood We breathe in through the . The is the passage connecting the throat and the lungs , also known as the windpipe . The oxygen passes through the trachea . The are tubes at the bottom of the trachea that connect into each . The oxygen passes through the bronchi into the lungs . The oxygen is then passed into the through the . The blood travels around the body to deliver and pick up . The carbon dioxide goes through the alveoli into the lungs . It passes through the rest of the organs until it is through our nose or our mouth . The is a muscle that helps the lungs by moving down to inhale air and moving up to exhale air .