Respiratory System Crossword Puzzle

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Across
  1. 1. Folds- Structures in the larynx that vibrate to produce sound.
  2. 3. Sinuses – Air-filled spaces in skull bones that lighten the skull and affect voice resonance.
  3. 5. Respiration – Exchange of gases between alveoli and the blood.
  4. 8. Membrane – Thin barrier between alveoli and capillaries where diffusion of O₂ and CO₂ happens.
  5. 12. – Smallest conducting airways that lead toward the alveolar ducts.
  6. 13. Cavity – The chamber inside the nose where air is warmed, filtered, and humidified.
  7. 14. – A flap of cartilage that covers the glottis during swallowing to prevent choking.
Down
  1. 2. – Tiny air sacs where gas exchange occurs.
  2. 3. – The throat a shared passageway for both air and food.
  3. 4. – Movement of air into and out of the lungs; includes inspiration and expiration.
  4. 6. – Voice box that houses the vocal cords and prevents food from entering the airway.
  5. 7. – The dome-shaped muscle essential for inspiration.
  6. 9. – The windpipe supported by C-shaped cartilage rings.
  7. 10. Respiration – Exchange of gases between the blood and body tissues.
  8. 11. – The two main airways branching from the trachea into the lungs.