Respiratory System

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Across
  1. 4. The name for a group of tissues working together to perform a specific job
  2. 5. The end of the bronchi tubes
  3. 7. What our bodies need to work properly
  4. 8. The tubes that force air to our cells
  5. 10. The type of blood cells that change oxygen into energy
  6. 11. The system that is responsible for our breathing
Down
  1. 1. One of the main organs that perform breathing
  2. 2. The primary location where oxygen enters our body
  3. 3. One way that we can get energy
  4. 6. What we need to turn food into energy
  5. 8. The main function of the respiratory system
  6. 9. The main muscle used to breathe