Humans normally have 12 pairs of ribs, but occasionally there is an extra pair of very short ribs.
typically it has 24 human
ABOUT 24
24. 12 on the left and 12 on the right.
There are 24 ribs in the human rib cage, 12 on each side of the sternum.
How to Remove the Rib Cage Frame in a 12" Powerbook