Body Systems - Digestive, Respiratory, Circulatory

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Across
  1. 4. To move continuously or freely through a closed system
  2. 5. The gas that we inhale
  3. 7. The organ that moves food from the mouth to the stomach
  4. 8. The organ in the circulatory system that pumps blood
  5. 10. Process of nutrients moving into the body or cells (like a sponge)
  6. 12. The system that brings oxygen into the body and excretes carbon dioxide
Down
  1. 1. The muscle in the respiratory system that helps us breathe
  2. 2. The two organs in the respiratory system that hold air
  3. 3. The organ that is the first stage of the digestive system
  4. 4. The system that uses blood to transport nutrients and waste around the body
  5. 6. The system that breaks down food into nutrients
  6. 9. The organ that is the last stage of the digestive system
  7. 11. The gas that we exhale