Question

Number of floating ribs in human body is:

• A. Two pairs
• B. Three pairs
• C. Five pairs
• D. Six pairs

Answer 1

The correct option is A Two pairs

There are two pairs of floating ribs present in human body. There are usually 12 pairs of ribs. The ${11}^{th}$ and ${12}^{th}$ pairs of ribs are called floating ribs because these ribs do not attach to the sternums or to another rib.