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diaphragm

the diaphragm is a large sheet of muscle that separates the chest cavity (containing the lungs and heart) from the abdominal cavity (containing the digestive organs).

the diaphragm also serves as a muscle to help draw air into the lungs as a person breathes. it contracts to expand the lungs when breathing in (inhaling) and relaxes when breathing out (exhaling). if the diaphragm is not able to move as it should, breathing may become difficult.

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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