The Human Body

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Across
  1. 2. This system fights off viruses and bacteria.
  2. 3. Important for a healthy gut.
  3. 5. Largest organ in the human body.
  4. 7. Your stomach has these to tell the brain it is full.
  5. 9. Takes blood away from your heart.
  6. 11. Healthy lungs are this color.
  7. 13. When you ______ your lungs release carbon dioxide.
  8. 14. Carries blood to your heart.
Down
  1. 1. This organ beats about 100,000 times a day.
  2. 4. The adult human body has 206 of these.
  3. 6. Largest bone in the human body.
  4. 8. The body's computer.
  5. 10. When you ______ your lungs oxygenate your blood.
  6. 12. Your body is made up of these.