NAME: GRADE: THE SKELETON 1. What is the difference between an exoskeleton and an endoskeleton? 2. The human body contains a skeletal system which is made up of bones and joints (a) Identify the bones labelled W, X, Y and Z. W X Y Z (b) State four functions of the skeleton system. 1 3. Below is a diagram of a long bone. Label the diagram A B C D E 4. F G H I Complete the table Part of the skeleton Skull Ribs Vertebrae Pelvis Soft organs it protects 2 5. The diagram below shows a joint (a) Identify the structures labelled P and Q P Q 6. (b) Describe the functions of P and Q (c) What type of joint is this? Which structures: (a) attach bones to bones? (b) attach muscles to bones? (c) act as shock- absorbers at the end of bones? 3