The human body typically has two pairs of floating ribs, making a total of four floating ribs.
Floating ribs are the last two pairs of ribs, which are commonly referred to as the 11th and 12th ribs. Unlike the other ribs, floating ribs do not attach to the sternum (breastbone) at all. Instead, they are only connected to the vertebrae in the back and are free at the front. This anatomical feature allows for greater flexibility and mobility in the ribcage, while still providing some protection to the lower back and surrounding organs.
In summary, there are four floating ribs in total in an adult human body, which serve a unique purpose in our overall rib structure.