Heart Crossword

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Across
  1. 2. make a sound when they close during the cardiac cycle.
  2. 3. generates in the heart muscle itself.
  3. 7. another conducting cell group located between the atria and ventricle.
  4. 10. spreads out over the atria, making them contract or depolarize.
  5. 11. is the total volume of blood ejected from the heart per minute
  6. 12. contracts rhythmically to perform its duty as a forceful pump.
Down
  1. 1. is also affected by the endocrine and nervous
  2. 2. between60 and 80 ml of blood are ejected from the ventricles.
  3. 4. increases cardiac output, because the heart rate is increased.
  4. 5. the muscles receive only 27% of the cardiac output.
  5. 6. electrical impulse shoots along
  6. 8. ventricles
  7. 9. A heart removed from the body will continue to beat