Which of the following describes bronchitis?

Bronchitis is specifically defined as the inflammation of the bronchi, which are the large air passages that lead from the trachea to the lungs. This condition can result from various factors, including infections, environmental pollutants, and smoking. The primary symptoms of bronchitis often include coughing, mucus production, wheezing, and difficulty breathing, all stemming from the irritation and swelling of the bronchial tubes.

The focus on bronchial inflammation distinguishes it from conditions involving other parts of the respiratory system. For instance, inflammation of the alveoli in the lungs pertains to pneumonia or other diseases, while inflammation of the pleura refers to pleuritis or pleurisy. An infection of lung tissue would describe pneumonia as well. Understanding these distinctions is crucial for correctly identifying and treating respiratory conditions in clinical scenarios.