Venetia: Blood vessels and the circulatory system

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Across
  1. 4. largest artery in the body
  2. 5. hollow section in the centre of a blood vessel
  3. 8. a hormone that increases the heart rate
  4. 12. word associated with the kidneys
  5. 16. valves found in the aorta and pulmonary artery
  6. 17. process by which substances move in and out of capillaries
  7. 18. this is lower in veins than in arteries
  8. 19. a word associated with the lungs
  9. 21. the material that restricts heart flow and increases blood pressure
  10. 22. largest vein in the body
  11. 23. valve between the right atrium and right ventricle
Down
  1. 1. a word associated with the heart
  2. 2. blood vessel that connects the lungs to the left atrium
  3. 3. tissue in an artery that allows it to expand
  4. 6. valve between the left atrium and left ventricle
  5. 7. blood vessel that connects right ventricle to the lungs
  6. 9. carried blood away from the heart
  7. 10. this type of fat increases the risk of heart disease
  8. 11. what happens when there is a lack of oxygen supplying the heart muscle
  9. 13. carries blood back to the heart
  10. 14. a word associated with the liver
  11. 15. structures mostly found in valves to prevent backflow
  12. 20. type of blood vessel that carries blood to the tissues