this post was submitted on 12 Aug 2023
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Anyone who knows how a skeleton looks like knows that there are spaces between the ribs. However, why does it have gaps between them? Why isn't it a single shell?

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[โ€“] [email protected] 2 points 1 year ago

The gaps are for muscles used to expand and contract the ribcage. The expansion and contraction causes the lungs to inflate and deflate = breathing.

The gaps keep you alive.