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2 votes
The diaphragm is the portion of the respiratory system composed of a dome-shaped muscle that runs across the upper abdomen and is attached to the bottom of lungs.

a. True
b. False

User David Roe
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9.1k points

1 Answer

3 votes
The answer is true. We do have a dome shaped muscle that runs across our upper abdomen.
User Blake Scholl
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