Introduction to Body systems

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Across
  1. 3. makes chemical messages
  2. 7. produces eggs
  3. 9. it makes blood cells
  4. 10. group of organs that work together
  5. 12. produces sperm
  6. 13. gas exchage occurs in the lungs of this system
Down
  1. 1. gets rid of the body's wastes.
  2. 2. collects information and send electrical messages
  3. 4. protective covering of the body.
  4. 5. allows movement of body parts
  5. 6. breaks down food into nutrients
  6. 8. moves blood through the body .
  7. 11. returns leaked fluid back to the blood.