Respiratory System

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Across
  1. 6. physical process of inhalation and exhalation
  2. 8. It is also known as the voice box.
  3. 9. Group of organs and tissues working together to enable us to breathe.
  4. 10. Dome-shaped muscle at the bottom of the lungs
Down
  1. 1. Grape-like structures; site of gas exchange
  2. 2. It is also known as the windpipe.
  3. 3. Main organ of the respiratory system
  4. 4. Two air tubes that branch off of the trachea and carry air directly into the lungs.
  5. 5. holes in your nose
  6. 7. This is where the air first enters our body.