respiratory organs

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Across
  1. 2. this organ is also called the voice box
  2. 6. a flap of cartilage behind the root of the tongue, which compresses during swallowing to cover the opening of the windpipe.
  3. 9. the human body has two of these, they work to filter oxygen out of the air and contain a few of the minor respiratory organs.
Down
  1. 1. the muscle that protracts and contracts to make your lungs breathe
  2. 3. very small sacs inside the lungs, they are at the end of the Bronchioles and are the organs of which gas exchange of oxygen and carbon dioxide takes place.
  3. 4. the only respiratory organ that is on the outside of your body, it is on your face,this organ serves as the main entrance and exit of air to and from the body.
  4. 5. an airway passage that connects the winpipe to the lungs.
  5. 7. the upper half of your throat and a part of the digestive system and the conducting zone of the respiratory system
  6. 8. this organ is also called the windpipe, this is the tube that connects the Larynx and Pharynx to the lungs, allowing the passage of air.