Respiratory System

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Across
  1. 5. the trachea is also called the _________
  2. 6. When you exhale, your lungs ______
  3. 7. What is the name of the tiny air sacs in your lungs?
  4. 8. When you inhale, air enters your lungs, and ______ from that air moves to your blood
Down
  1. 1. _________ is not good for your lungs
  2. 2. Your body couldn’t breathe without this system. Which system is it?
  3. 3. As you breathe, this contracts and flattens to give your lungs room to fill up with air _________
  4. 4. The respiratory system is made up of the trachea, the lungs, and the ______
  5. 5. After to pass through your nose and mouth, the air travels down your _________
  6. 9. Where does it take place the first stage of the respiratory system process