Awesome Anatomy!

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Across
  1. 4. blood
  2. 7. to protect your fingers
  3. 8. Invaders, what the immune system fights
Down
  1. 1. white blood cell
  2. 2. largest Organ in the body
  3. 3. to retain body heat
  4. 5. Marrow/Produces blood cells
  5. 6. the body