Cardiovasular System

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Across
  1. 4. the body has five ______ of blood
  2. 5. the heart has ______ chambers
  3. 6. The process of breaking up a thrombus (blood clot) that is blocking blood flow
  4. 7. cavity between the visceral and the parietal pericardial layers
  5. 8. carry blood back to the heart
  6. 9. cava largest vein in the body
  7. 11. vein venule
  8. 15. largest artery in the body
  9. 16. small artery
Down
  1. 1. innermost layer of epithelial cells
  2. 2. contraction phase of the heartbeat
  3. 3. smallest vessels
  4. 10. An x-ray or computer image (CT scan or MRI) of the blood vessels and blood flow in the body
  5. 11. chambers of the heart are separated by _______
  6. 12. carry blood away from the heart
  7. 13. beat of the heart as felt through walls of the arteries
  8. 14. relaxation phase of the heartbeat