CARDIOVASCULAR SYSTEM part1.

123456789101112131415
Across
  1. 5. double layered membrane surrounding the herat.
  2. 7. record of the electrical activities of the heart.
  3. 8. small artery.
  4. 9. abnormal swishing sound from an improper closure of the heart valve.
  5. 10. partition of walls dividing a cavity.
  6. 13. blood that is oxygen poor.
  7. 14. innermost lining of the blood vessel.
  8. 15. one of two upper Chambers of the heart.
Down
  1. 1. flow of blood from the heart to the lungs and back to the heart.
  2. 2. contraction phase of the heartbeat.
  3. 3. relaxation phase of the heartbeat.
  4. 4. beat of the heart as felt through the walls of the artery.
  5. 6. largest artery in the body.
  6. 11. inner lining of the heart.
  7. 12. small vein.