In our earlier reports on bronchitis we told you that bronchitis is the swelling of the bronchial tubes … the air passages between the nose and the lungs. It occurs when the lining of the bronchial tubes becomes inflamed or infected.
It is also defined as an inflammation of the mucous membranes of the bronchi (the larger and medium-sized airways that carry airflow from the trachea into the more distal parts of the lung parenchyma).
The signs and symptoms for both acute and chronic bronchitis include inflammation or swelling of the bronchi, coughing, production of clear, white, yellow, grey, or green mucus (sputum), shortness of breath, wheezing, fatigue, chest pain or discomfort and blocked nose.
Bronchitis is a respiratory disease in which the mucous membranes of the bronchial passages in the lungs become so inflamed. When the irritated membrane swells and grows thicker, it narrows or shuts off the airways in the lungs, resulting in coughing spells accompanied by thick phlegm and breathlessness.