Cardiovascular System Crossword_AT

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Across
  1. 1. veins that bring oxygenated blood to heart
  2. 4. slow beating of the heart
  3. 7. measures peripheral oxygen saturation in the blood
  4. 10. largest artery in the body
  5. 14. smallest blood vessels in the body
Down
  1. 2. muscle of the heart
  2. 3. weakening or bulge of the wall of a blood vessel
  3. 5. largest part of the heart
  4. 6. valve connecting left atrium and left ventricle
  5. 8. Largest vein in the body
  6. 9. fast beating of the heart
  7. 11. valve that connects right atrium and right ventricle
  8. 12. phase where heart muscles are contracted
  9. 13. composed of pacemaker cells
  10. 15. the loss of heart rhythm