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.
Metapodial
Metapodials are long bones of the hand (metacarpals) and feet (metatarsals) which connect the digits to the lower leg bones. In humans, five are present in each hand and foot. In quadrupeds, these form the lower limb, rather than being part of the extremity, thus what looks to be the elbow of a sheep is actually the wrist.