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Diaphragm (anatomy)

In the anatomy of mammals, the diaphragm is a shelf of muscle extending across the bottom of the ribcage.

The diaphragm separates the thoracic cavity (with lung and heart) from the abdominal cavity (with liver, stomach, intestines, etc.).

In its relaxed state, the diaphragm is shaped like a dome.

Note:   The above text is excerpted from the Wikipedia article "Diaphragm (anatomy)", which has been released under the GNU Free Documentation License.
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September 5, 2015

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