THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Of the 12 pairs of ribs, the first 7 are attached ventrally to the sternum; the next 3 are attached indirectly by cartilage; and the last 2, the floating ribs, have no attachments to the sternum. False ribs refer to the last five pairs of ribs.

Detailed explanation-2: -There are three pairs of false ribs. They are intermediate between the true ribs and the floating ribs. They are sometimes called vertebrochondral ribs. They differ from the true ribs because they do not directly articulate with the sternum.

Detailed explanation-3: -Ribs 8–10 are known as false ribs.