Bronchitis is the sudden development of inflammation in bronchial tubes—the major airways into your lungs. It usually happens because of a virus or breathing in something that irritates the lungs such as tobacco smoke, fumes, dust and air pollution. In bronchitis, cells that line the bronchi become infected. The infection usually starts in the nose or throat and travels to the bronchial tubes. When the body tries to fight the infection, it causes the bronchial tubes to swell.
This causes you to cough. Sometimes it is a dry cough, but often you will cough up mucus sputum. The swelling also narrows your airways, allowing less air to pass through, which can cause wheezing, chest tightness and shortness of breath. Related questions What is the significance of the fact that human tracheal cartilage rings are incomplete How is oxygen, carbon dioxide, and other waste gases exchanged in the lungs and body tissues?
What is the function of the lungs in connection with the circulatory system? How do the lungs function as excretory organs? What do pulmonary function tests measure? What is pulmonary hypoplasia? Gorenstein, MD. Your doctor will assess your need for supplemental oxygen using two methods: Arterial Blood Gases Can donor cause of death affect the survival of lung transplant recipients? The Society of Thoracic Surgeons.
Researchers assessed the association between lung donor cause of death and recipient survival, focus Also, the bullae can become very large. Normal lung tissue next to the bullae cannot expand properly, reducing lung function. Chronic bronchitis affects the oxygen and carbon dioxide exchange because the airway swelling and mucus production can also narrow the airways and reduce the flow of oxygen-rich air into the lung and carbon dioxide out of the lung.
The damage to the alveoli and airways makes it harder to exchange carbon dioxide and oxygen during each breath. Decreased levels of oxygen in the blood and increased levels of carbon dioxide cause the breathing muscles to contract harder and faster. The nerves in the muscles and lungs sense this increased activity and report it to the brain. As a result, you feel short of breath. Yoneda MD - Pulmonology. Author: Healthwise Staff.
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