Question

Number of pairs of floating ribs in human body is

• A. 6 pairs
• B. 5 pairs
• C. 3 pairs
• D. 2 pairs

Answer 1

Answer: (D)

2 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 as floating ribs because these ribs do not attach to the sternums or to another rib.

So, the correct answer is '2 pairs'.