46.The number of floating ribs, in the human body is A. 6 pairs B. 5 pairs C. 3 pairs D. 2 pairs
Option D. There are two pairs of floating ribs present in human body. There are usually 12 pairs of ribs. The 11th and 12th pairs of ribs are called as floating ribs because these ribs do not attach to the sternums or to another rib.
