Human Body System

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Across
  1. 4. a tube that carries the pee from bladder to out of the body
  2. 5. large, thin sheet of muscle that spread across the chest cavity
  3. 8. a sac that collects the pee
  4. 9. a hard, rigid tube that leads to the lungs
  5. 10. helps break down carbohydrates, fats, and proteins
  6. 12. dioxide, stuff that we breath out
  7. 14. tubes that carry the urine from each kidneys
  8. 16. one-way doors; found in both sides of the human heart
  9. 17. the smallest blood vessels
  10. 20. covers the opening of the trachea when you swallow
  11. 21. blood vessels that return blood to the heart
Down
  1. 1. intestine, completed and the nutrients are absorbed
  2. 2. pump the blood to distant tissues
  3. 3. stuff that we breath in
  4. 6. receiving chambers for the blood entering heart
  5. 7. filter that take the waste out of the blood and make pee
  6. 11. the tube-looking that connects the mouth to the stomach
  7. 12. to send blood from place to place within the body
  8. 13. blood vessels that carry blood away from the heart
  9. 15. intestine, reabsorbed water and fibre and other waste mater
  10. 17. the basic building blocks of all living things
  11. 18. chemicals that help to speed up the process of digestion
  12. 19. cleans the blood and store the sugar