The Respiratory System

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Across
  1. 2. Also know as the voice box.
  2. 3. The part of the system you breath in and out from.
  3. 4. Carries air to the cells in small air sacs.
  4. 7. A small flap which prevents food from entering the trachea.
  5. 8. Where the throat divides into the the Trachea and the Oesophagus.
  6. 9. Also known as the windpipe this is the tube which carries air from the throat into the lungs.
Down
  1. 1. Bronchi continue to divide and become _________.
  2. 5. The trachea divides into two tubes called _________ that lead into the lungs.
  3. 6. A broad band of muscle which sits underneath the lungs.