Rib
Ribs are classed as flat bones which usually have a protective role in the body. Humans have 24 ribs, in 12 pairs. All are attached at the back to the thoracic vertebrae, and are numbered from 1–12 according to the vertebrae they attach to. The first rib is attached to thoracic vertebra 1 (T1). At the front of the body most of the ribs are joined by costal cartilages to the sternum. The ribs connect to the vertebrae with two joints, the costovertebral joints.
Pork ribs
Button ribs (or "feather bones") are often confused with riblets mostly because Applebee's sells these as "riblets". In fact, what Applebee's sells is found just past the ribs near the back bone, just underneath the tenderloin. This cut of meat actually has no bones, but instead has "buttons" of cartilaginous material with meat attached.