The Heart

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Across
  1. 2. The liquid which is pumped around the heart
  2. 5. The gas in the air we need to breathe
  3. 6. These stop blood flowing in the wrong direction
  4. 8. The chambers at the bottom of the heart
  5. 9. The biggest artery leaving the heart
Down
  1. 1. Carries oxygenated blood from the lungs
  2. 3. Carries deoxygenated blood to the lungs
  3. 4. Blood enters here from the body
  4. 7. The chambers at the top of the heart