Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Bronchitis ?
    ### Response:
    Espaol
                
Bronchitis (bron-KI-tis) is a condition in which the bronchial tubes become inflamed. These tubes carry air to your lungs. (For more information about the bronchial tubes and airways, go to the Diseases and Conditions Index How the Lungs Work article.
    