Your bones give the body a frame, protect vital organs and work with muscles to produce movement. In this unit you learn the functions of the skeleton, the main types of joint and the movements they allow, the major muscles, and how muscles work in antagonistic pairs to move a limb and then move it back.
1. Which type of joint is the elbow and what movement does it mainly allow?
2. During the upward phase of a biceps curl the arm bends at the elbow. Which muscle is the agonist (prime mover)?
3. Which of these is a function of the skeleton?
4. A footballer swings a leg outwards, away from the midline of the body, to strike the ball. What is this movement called?
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