RESPIRATORY SYSTEM

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Across
  1. 1. air passes down through the pharynx the ______ and then the trachea
  2. 5. is a tube that connects the throat to the lungs
  3. 6. muscle under the lungs
Down
  1. 2. where the gas exchange takes place
  2. 3. air enters our body through our mouth and ______
  3. 4. the name of the two tubes between the bronchioles and the trachea