The Cardiovascular System

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Across
  1. 3. small collective chambers in the heart
  2. 5. when the heart is deprived of oxygen
  3. 7. Significant escape of blood from the system
  4. 9. Temporary chest pain often after physical activity
  5. 12. description of blood high in oxygen
  6. 14. description of blood low in oxygen
  7. 15. An organ the size of a clenched fist
  8. 17. Blood flowing through the system
Down
  1. 1. An organ which provides oxygen for the system
  2. 2. blood vessels not visible to the naked eye
  3. 4. a gas we breathe out
  4. 6. Carries blood back to the heart
  5. 8. a gas we breathe in
  6. 10. Largest artery in the human body
  7. 11. two chambers at the bottom of the heart
  8. 13. Carries blood away from the heart
  9. 16. the state of matter of oxygen