Circulatory System

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Across
  1. 6. carry blood back to the heart
  2. 7. the finest blood vessels that branch from the arteries
  3. 9. your body's transport system
  4. 11. a build-up on the inner wall of the arteries
  5. 12. muscle that does not get tired
  6. 13. a fatty substance that moves to an inflamed area to protect it
Down
  1. 1. the chemical that gives the red blood cell it's colour
  2. 2. a condition in which a lack of oxygen is supplied to the heart muscle
  3. 3. oxygen-rich blood
  4. 4. the beating feeling felt in the neck and wrist
  5. 5. blood with little oxygen and lots of carbon dioxide
  6. 8. carry blood away from the heart
  7. 10. a dangerous blood clot that can cause death