Human Systems

123456789101112
Across
  1. 3. Path for air to flow into and out of the lungs
  2. 6. Process where body uses oxygen and nutrients to create energy
  3. 8. Process where body breaks down food for nutrients
  4. 10. Organ that allows the body to exchange gases
  5. 11. Organ that digest food with saliva
  6. 12. Pathways for blood to travel
Down
  1. 1. Process where body exchange gases with surroundings
  2. 2. Pumps blood to all parts of the body
  3. 4. Provide the body with shape and supports it
  4. 5. Cells that carry oxygen, water and waste products
  5. 7. Organ that digest food with gastric acid
  6. 9. Path for food to enter the stomach