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There are twelve pair of ribs. The first seven ribs are true ribs because they have direct attachment to the sternum. An additional three pair of ribs have indirect attachment to the sternum meaning that they attach to other structures that attach to the sternum. The last two ribs are called floating ribs because they do not attach to the sternum at all. Because the floating ribs do not attach to the sternum they are prone to injury.

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15y ago
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9y ago

The floating rib is easily broken because they are attached to the backbone but not the breast bone. There are two pairs of floating ribs in the body.

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Q: Why is a floating rib easily broken?
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