Cardiovascular System

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Across
  1. 4. smallest blood vessel
  2. 8. surgical repair of a blood vessel
  3. 9. one of two lower chambers of the heart
  4. 13. small artery
  5. 14. muscular, middle layer of the heart
  6. 15. partition or wall dividing a cavity.
Down
  1. 1. small vein
  2. 2. largest artery in the body
  3. 3. relaxation phase of the heartbeat
  4. 5. largest type of blood vessel
  5. 6. contraction phase of the heartbeat
  6. 7. instrument to measure blood pressure
  7. 10. inner lining of the heart
  8. 11. enlargement of the heart
  9. 12. innermost lining of blood vessels