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It gives it some flexibility when the ribcage expands and contracts with pulmonary ventilation.

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14y ago
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12y ago

So your chest can expand to get air into your lungs :3

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12y ago

because if your joints moved a lot, your lungs would not be properly protected and you would probably end up breaking your ribs.

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Q: Why is your rib cage and breast bone partially movable?
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under the breast lies the ribcage- that little bone betwen the rib cage and protecting them is the sternum


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