Human Body Systems CRW

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Across
  1. 2. red blood cells are made in the bone ______
  2. 3. oxygen and carbon dioxide, for example
  3. 6. intestine where water is removed
  4. 8. tube that is part of digestive system
  5. 13. where oxygen leaves lung and enters blood
  6. 15. digestion starts here
  7. 16. this system carries nutrients to cells respiratory brings in oxygen and releases carbon dioxide
  8. 17. only cardiac muscle in the body
Down
  1. 1. works with skeletal system to move the body
  2. 2. some kinds are involuntary or voluntary
  3. 4. the control center system
  4. 5. system that protects the body's organs
  5. 7. nervous system part protected by spine
  6. 9. type of muscle inside some organs
  7. 10. intestine where nutrients go into the blood
  8. 11. carries nutrients to cells and removes waste
  9. 12. tube that is part of respiratory system
  10. 14. part of nervous system