The organ systems

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Across
  1. 3. To protect the body from outside sources, like viruses
  2. 6. to maintain many things, such as body temp. Regulation, cell fluid maintenance, etc.
  3. 7. To give the body shape, give protection to organs, and makes blood cells
  4. 8. It is responsible for movement in the body
  5. 11. To maintain body fluids at a normal amount
  6. 12. Mainly to produce egg and sperm cells
Down
  1. 1. To deliver nutrients to your cells and takes out waste
  2. 2. To maintain growth of the brain and reproductive system, as well as the metabolism
  3. 4. To bring fresh air in, and toxic waste out
  4. 5. To break down nutrients, so that they are small enough for the body to absorb
  5. 9. provides the body with shape
  6. 10. To help somebody parts communicate with other parts of the body