BODY SYSTEMS

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Across
  1. 5. found in the lungs where the blood exchanges oxygen and carbon dioxide
  2. 6. protects your brain
  3. 9. filter the blood to remove wastes by making urine
  4. 10. organ that pumps the blood around your body.
  5. 12. gas we need to live
  6. 13. main function is to break down food using strong acids
Down
  1. 1. stop blood flowing backwards in your veins and arteries
  2. 2. long tube that absorbs most of nutrients from your food
  3. 3. damages lungs and causes cancer
  4. 4. important bones that protect your heart and lungs
  5. 7. long tube that absorbs water and gets rid of any waste left over
  6. 8. made in the liver to help with digestion
  7. 11. big sack that stores urine