1. Cartilage resists the tension and stress of various organs.
2. Gives shape to various organs.
3. Joints help join two or more bones together.
4. Protects bones from frictional injuries.
5. Helps tendons and ligaments attach to bones.
6. A glycoprotein called lubricin in cartilage acts as a lubricant.
7. Forms the embryonic skeleton of vertebrates and the endoskeleton of fishes such as chondrichthys.