Respiratory System- Crossword

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Across
  1. 2. Tiny hair-like structures that help move mucus in the respiratory tract.
  2. 5. Structures in the larynx that vibrate to produce sound.
  3. 7. Muscle that helps in breathing by contracting and expanding the lungs.
  4. 8. Upper part of the pharynx, connecting with the nasal cavity.
  5. 11. Flexible connective tissue found in the respiratory tract.
  6. 13. The act of drawing air into the lungs.
  7. 14. The movement of air into and out of the lungs.
Down
  1. 1. The sense responsible for detecting odors.
  2. 3. The windpipe; a tube leading from the larynx to the lungs.
  3. 4. Flap that prevents food from entering the windpipe.
  4. 6. Gas essential for cellular respiration.
  5. 9. The iron-containing part of hemoglobin that binds oxygen.
  6. 10. The cavity behind the nose and mouth, connecting them to the esophagus.
  7. 11. Zone of the respiratory system that transports air but does not exchange gases.
  8. 12. Relating to the organs of breathing.