cartilage

First a scaffold of cartilage, like the wobbly bit on the end of your nose, forms.

The hit also tore his lateral cruciate ligament, shredded the cartilage in his knee and tore the hamstring off the bone.

Tests later revealed he broke the costal cartilage of his sixth rib.

After the first two games, Leonard complained of knee swelling and inflammation, and an MRI revealed cartilage damage.

They do not have scales and their skeletons are made completely of cartilage.