The Muscular System

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Across
  1. 2. muscle that shortens
  2. 4. held in a static position
  3. 5. For a contraction to occur the muscles need _________ & fuel
  4. 7. type of muscle fibre
  5. 9. In the walls of the digestive system
  6. 12. muscles that stop unwanted movement by stabillising joints
  7. 13. A skeletal muscle
  8. 14. fast contracting and able to produce great force
Down
  1. 1. muscles must cross the _______ they move
  2. 2. if it did not relax movement could not take place
  3. 3. your calf muscle
  4. 4. when muscle contracts and shortens at same speed
  5. 6. Muscles do not ______
  6. 8. when muscle shortens against a resistance
  7. 10. when a muscle returns to normal length
  8. 11. they work along side the agonists to control and direct movement