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2. Lung - Wikipedia

   en.wikipedia.org/wiki/Lung

   A primary pulmonary lobule is the part of the lung distal to the respiratory bronchiole. [29] Thus, it includes the alveolar ducts, sacs, and alveoli but not the respiratory bronchioles. [30] The unit described as the secondary pulmonary lobule is the lobule most referred to as the pulmonary lobule or respiratory lobule.

3. Pulmonary alveolus - Wikipedia

   en.wikipedia.org/wiki/Pulmonary_alveolus

   A pulmonary alveolus (pl. alveoli; from Latin alveolus 'little cavity'), also called an air sac or air space, is one of millions of hollow, distensible cup-shaped cavities in the lungs where pulmonary gas exchange takes place. [1] Oxygen is exchanged for carbon dioxide at the blood–air barrier between the alveolar air and the pulmonary ...

4. Respiratory tract - Wikipedia

   en.wikipedia.org/wiki/Respiratory_tract

   COPD destroys the alveoli, and lung tissue which makes breathing very difficult, causing shortness of breath, hyperventilation, and raised chest. The decreased number of alveoli causes loss of oxygen supply to the lungs and an increased accumulation of carbon dioxide. There are two types of COPD: primary and secondary.

5. Obstructive lung disease - Wikipedia

   en.wikipedia.org/wiki/Obstructive_lung_disease

   COPD is defined as a forced expiratory volume in 1 second divided by the forced vital capacity (FEV1/FVC) that is less than 0.7 (or 70%). [8] The residual volume, the volume of air left in the lungs following full expiration, is often increased in COPD, as is the total lung capacity, while the vital capacity remains relatively normal.

6. Chronic obstructive pulmonary disease - Wikipedia

   en.wikipedia.org/wiki/Chronic_obstructive...

   Chronic obstructive pulmonary disease (COPD) is a type of progressive lung disease characterized by chronic respiratory symptoms and airflow limitation. [8] GOLD 2024 defined COPD as a heterogeneous lung condition characterized by chronic respiratory symptoms (dyspnea or shortness of breath, cough, sputum production and/or exacerbations) due to abnormalities of the airways (bronchitis ...

7. How to Exercise When You Have COPD - AOL

   www.aol.com/exercise-copd-143308318.html

   COPD is a progressive lung condition occurring in several forms, in which structural changes obstruct airflow, making it harder to breathe. It’s often caused by long-term exposure to tobacco ...