Cardiovascular System

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Across
  1. 2. Abnormal heart rythms
  2. 4. Largest type of blood vessel
  3. 6. Lower chamber of the heart
  4. 7. Inner lining of the heart
  5. 9. Small vein
  6. 10. Largest artery in the body
  7. 11. Upper chamber of the heart
  8. 12. Beat of the heart
  9. 13. Smallest blood vessel
  10. 14. Contraction phase of the heart
Down
  1. 1. Double layered membrane surrounding the heart
  2. 3. Relxation phase of the heartbeat
  3. 5. Small artery
  4. 8. Muscular inner layer of the heart
  5. 11. Local dilation of an arterial wall