Cardiovascular System

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Across
  1. 3. These fibres carry electrical signal to the base of the heart to contract ventricles.
  2. 6. White blood cells that use T cells and produce antibodies to attack bacteria.
  3. 8. Carry oxygen and haemoglobin.
  4. 11. Chambers at top of heart.
  5. 12. Tiny vessel supplying tissues with blood.
  6. 15. The name of the build-up of fats and cells in blood vessels.
  7. 16. This pressure forces plasma through capillary walls.
  8. 17. ________ is regulated by blood.
  9. 19. Ventricles contracting.
  10. 22. This node passes signal to the atrium to contract.
  11. 23. The chemical to which oxygen binds in red blood cells.
  12. 24. The heart has 4 of these.
Down
  1. 1. White blood cells that kill bacteria.
  2. 2. Ventricles relaxing.
  3. 3. Often a type of vessel relating to the lungs.
  4. 4. Blood vessels supplying blood to the heart's own muscle.
  5. 5. Major vein at the heart.
  6. 7. Carries water-soluble nutrients in the blood.
  7. 9. Muscle that pumps blood around the body.
  8. 10. Stops the backflow of blood.
  9. 13. Blood vessel with thick walls.
  10. 14. The main artery at the heart.
  11. 16. Malfunction relating to high blood pressure.
  12. 18. Chambers at bottom of heart.
  13. 20. Valve also known as Tricuspid.
  14. 21. Measures electrical activity in the heart.