Parts of the Body

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Across
  1. 3. main organ in the circulatory system
  2. 4. carry blood back to the heart
  3. 6. system responsible for breathing
  4. 8. system responsible for movement
  5. 9. most important organ of the body
  6. 11. carry blood away from the heart
  7. 12. main organ of respiratory system
Down
  1. 1. system comprised of bones
  2. 2. lower arm bone
  3. 3. upper arm bone
  4. 5. smallest type of vessel
  5. 7. bones surrounding the lungs
  6. 10. longest bone in the body