18-19-20

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Across
  1. 1. Blood vessel which carries blood from the heart
  2. 5. Lining of the heart
  3. 6. is the proliferation and differentiation of the formed elements of blood.
  4. 12. Hardening of the arteries
  5. 13. Valve between right ventricle and the pulmonary trunk
  6. 14. Are derived from cells called
  7. 15. Slower than normal heart rate
  8. 20. The heart is a little larger than your
  9. 22. largest artery in the body
  10. 24. Lower chambers of the heart
  11. 25. Pressure in the arteries at the peak of ventricular contraction
  12. 27. Valve between the left atrium and the left ventricle
  13. 28. Sack around the heart
  14. 29. Blood vessel which carries blood to the heart
  15. 30. The heart pumps blood to each body
Down
  1. 2. biconcave discs with
  2. 3. Lungs
  3. 4. Upper chambers of the heart
  4. 7. The pressure when the ventricles are relaxing
  5. 8. The heart is classified as a
  6. 9. Tough muscular wall of the heart
  7. 10. Fatty deposits in the inner lining of the arteries
  8. 11. Defective heart valve
  9. 16. narrowing of the blood vessels
  10. 17. From the right side of the heart, blood goes to the
  11. 18. between the right atrium and the right ventricle
  12. 19. Regulates the flow of blood through the heart
  13. 21. widening of the blood vessels
  14. 23. Wall which divides heart cavity down the middle
  15. 26. Smallest blood vessel