Human Body

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Across
  1. 1. a major organ of the skeletal system
  2. 2. the system that works most closely with the skeletal
  3. 5. the system that breaks down food into usable nutrients
  4. 8. a major organ of the respiratory system
  5. 10. the system that is the body's first line of defense against germs
  6. 11. the system that brings oxygen to all cells inside the body
Down
  1. 1. a major organ of the nervous system
  2. 3. a major organ of the integumentary system
  3. 4. the system responsible for controlling body movement
  4. 6. the system that produces blood cells
  5. 7. the system that brings oxygen into the body
  6. 9. a major organ of the digestive system