Long term effects of exercise

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Across
  1. 3. system this includes the heart, arteries, veins and capillaries and involves the circulation of blood around the body
  2. 5. regular exercise will increase the bodies ability to tolerate this. The chemical equation for this is CH3CH(OH)COOH.
  3. 6. system that includes muscles, cells, tissues and organs
  4. 8. Muscles contract more strongly and the walls of the heart become thicker
Down
  1. 1. the amount of blood ejexted from the heart per beat. Measured in mL (milliliters)
  2. 2. A lower than normal heart rate is called what?
  3. 4. system that includes nasal passages, windpipe and lungs and involves the body's breathing system.
  4. 7. system that consists of the framework of bones that supports the body