These ribs also connect to the thoracic vertebrae in the back. Sets 11 and 12 are floating ribs, and they connect only to the thoracic vertebrae of the spinal column in the back. It is the ...
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9 Interesting Facts About the Ribs
Ribs 11 and 12 are called "floating ribs" because they only connect to the spine in back. These, he says, "are much shorter." ...