The Cardiovascular System

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Across
  1. 1. carries oxygen to the body
  2. 4. tubes that take blood out of the heart
  3. 6. main organ in cardiovascular
  4. 9. the person that performs the bypass
Down
  1. 1. dangerous, open heart surgery
  2. 2. the name of the system (first part only)
  3. 3. you need a good one to avoid coronary heart disease
  4. 5. main part of the heart (right at the top)
  5. 7. pumps the oxygen to the heart
  6. 8. a type of surgery that isn't overly dangerous