GCSE Biology Animal Transport

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Across
  1. 2. blood vessel that returns blood to the heart
  2. 4. what happens when a coronary artery is blocked
  3. 6. blood vessel with thicker walls
  4. 8. they allow blood to flow one way only
  5. 12. where oxygen enters the body
  6. 13. the blood vessel that carries blood to the lungs
Down
  1. 1. a chamber in the lower part of the heart
  2. 3. the waste gas that we breathe out
  3. 5. blood vessel that supplies the body
  4. 6. the process of inserting a stent
  5. 7. thin blood vessel with cells one cell thick
  6. 9. blood vessel with a large lumen
  7. 10. the arteries that supply the heart with blood
  8. 11. a wire mesh that keeps an artery open