The parts of the skeleton that are not as hard as bones and which can be bent are called as

Explanation

Cartilage is a type of connective tissue in which there is sufficient space between the cells. Its solid matrix is made of chondrin (protein and sugar). It makes the joints of bones smooth; as a result, friction between bones is reduced. Cartilage is present in the nose, ear, larynx, trachea, and between the bones of the vertebral column. The study of cartilage is called chondrology.