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When the diaphragm moves downward, the lungs fill with air. True or False?
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When the diaphragm moves downward, the lungs fill with air. True or False?

User Nevercom
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true ()() ( )( ) ⇔ my bad diagram
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The diaphragm pulls the lungs down, expanding them and making a vacum.
User Yashika Garg
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