Body system

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Across
  1. 4. finger like structure in small interstine
  2. 5. organ that pumps blood to all parts of body
  3. 6. thread like structure which carry genes
  4. 7. basic unit of the body
  5. 8. Other name for wind pipe
Down
  1. 1. Clots the blood
  2. 2. powerhouse of the cell
  3. 3. disease caused by deficiency of vit d]
  4. 6. Largest part of the brain