Cardiovascular Crossword Puzzle

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Across
  1. 3. diastole is the ____ period of the heart
  2. 4. blood type O is the universal____
  3. 5. what is the role of blood in the immune system
  4. 6. blood clotting requires which mineral
  5. 7. a bruise is caused by ____ blood cells
  6. 8. blood pressure is measured with what
  7. 11. the heart beat starts in the _______ node
  8. 12. which is thicker, artery or vein
  9. 14. name the valve between right atrium and right ventricle
  10. 15. antibodies are produced in response to ____
  11. 16. deoxygenated blood returns to the ____ side of the heart
Down
  1. 1. which vessels use valves to move blood
  2. 2. red blood cells are known as ____
  3. 4. pulmonary arteries carry ____ blood
  4. 9. name the outer layer of the heart
  5. 10. cells that clot the blood are known as ____
  6. 13. lumen are ____ in veins than arteries