Bronchitis is primarily the inflammation of which part of the respiratory system?

Bronchitis is primarily characterized by the inflammation of the bronchial tubes, which are the air passages that branch off from the trachea and lead into the lungs. When these tubes become irritated, it leads to increased mucus production, coughing, and difficulty breathing, which are hallmark symptoms of bronchitis. This condition can be acute or chronic, often arising from infections, smoking, or exposure to irritants. The focus on the bronchial tubes is key to understanding the pathology of bronchitis, as the inflammation in this area significantly impacts airflow and respiratory function.