Cardiovascular System

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Across
  1. 5. Smallest type of blood vessel
  2. 6. Inner lining of the heart
  3. 7. Measure of blood pressure
  4. 8. Beating of heart
  5. 9. One of two upper chambers of the heart
  6. 12. Largest artery in the body
  7. 15. Largest type of blood vessel
  8. 16. Small artery
Down
  1. 1. One of two vessels carrying oxygenated blood from lungs to heart
  2. 2. Abnormal swishing sound
  3. 3. Blood that is oxygen-poor
  4. 4. Only time carries oxygen-poor blood from heart to lungs
  5. 10. Valve between the left atrium and left ventricle
  6. 11. Relaxation phase of the heartbeat
  7. 13. Gas that enters the blood through the lungs
  8. 14. Dioxide Gas released by body cells