Homework task 2

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Across
  1. 3. effort level for the ATP-CP system
  2. 5. fuel source for the anaerobic glycolysis system
  3. 8. combines speed and balance
  4. 9. sporting example of the aerobic system
  5. 11. consists of the brain and spinal cord
  6. 12. towards the midline of the body
  7. 14. a system that doesn't rely on oxygen
Down
  1. 1. away from the midline of the body
  2. 2. function of the skeletal system
  3. 4. when muscles contract but the length remains the same
  4. 6. a bone used for protection
  5. 7. joints that are freely moveable
  6. 8. the muscle that shortens and contracts
  7. 10. movement away from the midline of the body
  8. 13. a system used with oxygen
  9. 15. located in the walls of the heart