Lungs are complex organs primarily made of a network of alveoli, bronchioles, bronchi, elastic tissues, and a protective lining called the pleura.
Understanding the Components of Lungs
Here's a breakdown of the key components that make up the lungs:
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Alveoli: Each person has hundreds of millions of tiny air sacs called alveoli. These are responsible for gas exchange (oxygen in, carbon dioxide out).
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Bronchioles and Bronchi: These are tubes that carry air into and out of the alveoli. This network is often referred to as the bronchial tree.
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Elastic Tissues: These tissues enable the lungs to inflate and deflate efficiently without losing their shape. This elasticity is crucial for breathing.
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Pleura: This is a thin lining that covers the lungs, providing a protective layer and allowing them to move smoothly within the chest cavity. It is pronounced "PLUR-uh".
Summary of Lung Composition
| Component | Function |
|---|---|
| Alveoli | Gas exchange (oxygen and carbon dioxide) |
| Bronchi/Bronchioles | Air passageways to and from alveoli |
| Elastic Tissues | Allows inflation and deflation without shape distortion |
| Pleura | Protective lining; facilitates smooth lung movement |
