Human Body System

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Across
  1. 2. lower chamber of the heart
  2. 3. covers inner surface of small intestine
  3. 5. upper chamber of the heart
  4. 6. Man's best friend
  5. 7. found in the kidney little filter, that blood goes through
  6. 9. smallest blood vessel
  7. 10. it carries blood back to the heart
  8. 12. basic unit of structure and function in living things
  9. 13. filters waste from the blood
  10. 14. carries blood away from the heart
  11. 16. stores urine
  12. 18. Large marsupial
  13. 19. Has a trunk
Down
  1. 1. system transport oxygen around the body
  2. 4. direct air into the lungs
  3. 8. plays important part in forming scabs
  4. 11. system removes cellular waste from your body
  5. 15. connects stomach to mouth
  6. 16. Flying mammal
  7. 17. Likes to chase mice