![]() They become damaged and are less elastic. Emphysema affects the air sacs in your lungs, as well as the walls between them. ![]() What are the types of COPD (chronic obstructive pulmonary disease)? The airways make more mucus than usual and can become clogged.The walls of the airways become thick and inflamed.The walls between many of the air sacs are destroyed.The airways and air sacs in your lungs become less elastic.If you have COPD, less air flows in and out of your airways because of one or more problems: When you breathe out, the air sacs deflate, and the air goes out. The air sacs fill up with air, like a small balloon. When you breathe in, the airways bring air to the air sacs. Normally, the airways and air sacs in your lungs are elastic or stretchy. What is COPD (chronic obstructive pulmonary disease)?ĬOPD (chronic obstructive pulmonary disease) is a group of lung diseases that make it hard to breathe and get worse over time.
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