My Biology crossword puzzle

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Across
  1. 2. made of cholesterol and blocks arteries
  2. 5. every cell in your body is close to it
  3. 8. a disease caused by a certain type of protozoa which are carried by mosquitoes.
  4. 9. the shape of red blood cells
  5. 13. contains the heart, blood and blood vessels
  6. 14. it is pumped by your heart
  7. 15. this blood vessel has a thick wall
Down
  1. 1. how many times your heart beats in a minute
  2. 3. the pressure when your heart pumps blood throughout your body
  3. 4. a condition in which your blood cannot carry enough oxygen
  4. 6. a red chemical contained in red blood cells
  5. 7. a person who studies the way your blood changes when you are ill
  6. 10. a yellow liquid mixed in your blood
  7. 11. when the blood supply to the brain is blocked
  8. 12. this blood vessel carries deoxygenated blood