Circulatory System

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Across
  1. 2. heart rate found by 220-age
  2. 4. the largest artery in the body; takes oxygen rich blood to the entire body
  3. 6. the vena cava at the top of the heart
  4. 9. the chambers of the heart squeeze
  5. 10. valve separating the right atria and right ventricle
  6. 11. the oxygen poor side of the heart
  7. 14. valve that separates the left atria and left ventricle
  8. 15. heart rate after performing physical activity
  9. 17. the chambers on the bottom of the heart
  10. 19. the oxygen rich side of the heart
  11. 20. a waste product of the circulatory system
  12. 21. these structures allow blood to flow in one direction
Down
  1. 1. the vena cava at the bottom of the heart
  2. 3. chambers at the top of the heart
  3. 5. blood vessels that take blood away from the heart
  4. 7. another word for lungs
  5. 8. the smallest of blood vessels
  6. 12. blood vessels that bring blood back to the heart
  7. 13. number of chambers in the heart
  8. 16. heart rate while at rest; between 60-100 beats per minute
  9. 18. heart rate when performing physical activity