Skeletons (B5)

The purpose of our skeleton is to protect our organs, enable movement and to give structure

Exoskeleton - skeleton on the outside of the body

• Many invertebrates living in water do not have skeletons
• Worms are supported by the pressure of their internal fluid (hydrostatic skeleton)

Vertebrates have internal skeletons

Nose, earlobes and the edge of your bones are made of cartillage

In some fish (sharks/dogfish) the skeleton is just cartillage

The head of the bone is covered with cartillage. The outer…