Final answer:
A person with bronchitis has inflammation of the bronchi or bronchial tubes, which are the air passages that conduct air into the lungs. Acute bronchitis is usually caused by viruses or bacteria and can be treated with antibiotics.
Step-by-step explanation:
A person with bronchitis has inflammation of the bronchi or bronchial tubes. Bronchitis is an inflammation of the air passages that conduct air into the lungs. The bronchi become red and swollen with infection, causing symptoms such as coughing, shortness of breath, and wheezing. Acute bronchitis is usually caused by viruses or bacteria and can be treated with antibiotics.