Solve the crossword on human organs

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Across
  1. 1. Important organ of respiratory system
  2. 4. Can regenerate itself
  3. 6. Absorption of food and nutrients
  4. 9. Organ of vision
  5. 10. Has an acidic pH and helps in digestion
Down
  1. 2. Helps one sit,stand,walk, twist and bend
  2. 3. Excretory organ
  3. 5. Aids in hearing
  4. 7. Has enamel covering
  5. 8. Pumps blood