1. Anatomy and Performance R Welford Skeleton and Joints

3. Today we are going to concentrate on the how the FUNCTION of the skeleton and JOINTS work in sport.

4. How are you going to remember the 4 functions? Blood Production, Protection, Movement, Shape/Support (BP makes sense!) The Four Functions of the Skeleton 1. Blood Production 2. Protection 3. Movement 4. Shape/Support

5. Below is a diagram of two broken bones, can you name them?

6. Joint types Ball and Socket Joints Shoulder and the hip. They allow a circular movement in these joints. In the hip it is the femur which provides the 'ball'. The pelvis, or hip bone, provides the socket. At the shoulder the 'ball' is part of the humerus, the long bone in the top of the arm. The 'socket' is formed by the scapula or the shoulder blade.

7. Ball and socket Ball and Socket joint

8. In the picture below the ball and socket joint at the hip allows the player to get height and then the ball and socket joint at the shoulder allows him to SLAM DUNK!!

9. Hinge Joints These are found at the elbow and the knee. They allow a movement of 180° in one direction. Try moving your arm at the elbow. It can only move in a half circle (180°) and only up and down. Now move your arm from the shoulder and see the difference.

10. Hinge joint (the elbow) in use taking a set shot

11. The knee (HINGE JOINT) is used when flexing (bending) and extending (straightening) the leg to kick a football

12. Hinge joints and Ball and Socket joints are known as SYNOVIAL JOINTS because the joint is filled with a liquid called synovial fluid. Synovial fluid helps lubricate and protect the bones. Joints are held together by ligaments.