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How Your Lungs Work Your lungs are made of a spongy tissue divided into sections or lobes: The right lung has three lobes, and the left has two. A thin lining called the pleura encases the lungs. Eac...
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COPD Remains Widely Undetected According to the American College of Chest Physicians, chronic obstructive pulmonary disease (COPD) is the fourth leading cause of death in the world. In the U.S., the ...
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COPD: More of Us Are Out of Breath The average person takes 12 breaths every minute while at rest. It's a reflex--you don't pay attention unless there's a problem. However, a rising number of us lite...
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Chronic Obstructive Pulmonary Disease What is chronic obstructive pulmonary disease (COPD)? COPD is a term that refers to a group of lung diseases that can interfere with normal breathing. According ...
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Pulmonary Emphysema Healthy Bronchiole and Alveoli - Click to Enlarge What is pulmonary emphysema? Emphysema is a chronic lung condition in which the alveoli, or air sacs, may be: Destroyed Narrowed ...
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Anatomy of the Respiratory System What is respiration? Respiration is the act of breathing: Inhaling (inspiration). The act of breathing in oxygen. Exhaling (expiration). The act of breathing out car...
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Chronic Bronchitis Respiratory System - Click to Enlarge What is chronic bronchitis? Chronic bronchitis means long-term inflammation of the bronchi, which results in increased production of mucus, as...
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COPD: Terms to Know Addiction. A compulsive need to use a substance such as tobacco, drugs, or alcohol. Addiction can be physical or psychological. In physical addiction, your body becomes dependent ...
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