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The Lungs

The lungs, a pair of sponge-like, cone-shaped organs, are part of the respiratory system. The right lung has three sections, called lobes; it is a little larger than the left lung, which has two lobes. When we breathe in, the lungs take in oxygen, which our cells need to live and carry out their normal functions. When we breathe out, the lungs get rid of carbon dioxide, which is a waste product of the body's cells.

Diagram of the lungs

The lungs
Explanatory Terms
 Respiratory System (RES-pih-ra-tor-ee):

The organs that are involved in breathing. These include the nose, throat, larynx, trachea, bronchi, and lungs. Also called the respiratory tract.

Lobe:

A portion of an organ, such as the liver, lung, breast, thyroid, or brain.  		  

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