how many ribs do humans have
Humans have 24 ribs (12 pairs). The first seven sets of ribs, known as  true ribs  (costae verae), are directly attached to the sternum through the costal cartilage. Rib 1 is unique and harder to distinguish than other ribs. It is a short, flat, C-shaped bone. The vertebral attachment can be found just below the neck and the majority of this bone can be found above the level of the clavicle. Ribs 2 through 7 have a more traditional appearance.