Which best describes carbon dioxide’s path out of the body?

Carbon dioxide moves from the alveoli, where it enters the airways from the blood, toward the outside of the body. It passes through the bronchi, then the trachea, larynx, and pharynx before leaving through the nose. Therefore, the correct choice is “alveoli → bronchus → trachea → larynx → pharynx → nose.”

AI-written and checked against the verified answer.