The three pairs of ribs that articulate indirectly with the sternum are called:
A)true ribs
B)false ribs
C)floating ribs
D)spare ribs

Question

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The three pairs of ribs that articulate indirectly with the sternum are called false ribs. True ribs (A) are the first seven pairs of ribs that attach directly to the sternum via costal cartilages. Floating ribs (C) are the last two pairs of ribs that do not attach to the sternum at all. Spare ribs (D) is not a valid term for ribs that articulate indirectly with the sternum.

The Three Pairs of Ribs That Articulate Indirectly with the Sternum