Respiratory System Crossword

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Across
  1. 5. Flexible tube that connects the larynx with the bronchial tree
  2. 6. Hollow space behind the nose
  3. 7. Soft, cone-shaped organs that occupy a large portion of the thoracic cavity
Down
  1. 1. Branched tubes that lead from the trachea to the alveoli
  2. 2. Chamber behind the mouth cavity and between the nasal cavity and larynx
  3. 3. Hollow spaces in various bones of the skull
  4. 4. Enlargement at the top of the trachea
  5. 6. Part of face centered above the mouth and below the space between the eyes