Body System Tia

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Across
  1. 2. that help control cells and organs
  2. 4. blood from artiest filters
  3. 5. recognize and neutralize harmful
  4. 7. strong bones
  5. 8. help you swallow
  6. 11. control for the body
Down
  1. 1. ethereal cells and melanomas
  2. 3. reduction each cell contains 23 chromosomes
  3. 6. large blood vessels lined with muscles
  4. 9. are sacs of the lungs tiny sacs.
  5. 10. of the nervous system