there-are-12-pairs-of-rib-bones-and-the-last-two-are-called-floating-ribs-why-is

Question

There are 12 pairs of rib bones and the last two are called floating ribs. Why is that the case:

Accepted Answer

They are short bones that do not attach to the sternum

Answer

They articulate with the 10th ribs and attach to the sternum

Answer

They are significantly shorter than the other rib bones but attach directly to the sternum

Answer

The last two rib bones are fused