Effects of exercise on the body systems

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Across
  1. 2. This energy system doesn't require oxygen to work.
  2. 5. This happens to your heart rate when you start exercising.
  3. 6. This energy system requires you to use air.
  4. 7. The main component of this boyd system are your lungs.
  5. 9. W____________g is a good example of someone using the alactic energy system.
Down
  1. 1. This body system is made up of the heart, blood and blood vessels.
  2. 3. When muscles adapt to training they increase in size.
  3. 4. This builds up in the muscles when you don't get enough oxygen.
  4. 8. These types of athletes really on the aerobic energy system.
  5. 10. Micro tears in muscle ______ is an example of a short-term effect.