Across
- 5. A flexible flap of cartilage that covers the opening of the airway during swallowing
- 8. Section of the upper respiratory tract that warms, filters and moistens air
- 10. The smallest branches of the bronchial tubes
- 11. septum The wall between the nostrils
- 14. Voicebox, “Adam’s apple”
- 16. Oxygen and carbon dioxide transported by the bloodstream
- 17. Folded mucous membranes in the larynx which vibrate from expelled air to form sounds
Down
- 1. Exchanging gasses between blood and tissue cells
- 2. Exchanging gasses between alveoli and blood
- 3. Divisions of the trachea into left and right
- 4. Windpipe
- 6. Air moving in and out of the lungs, breathing
- 7. Large, soft and spongy organs in the thoracic cavity
- 9. Cells that line the respiratory tract with cilia (microscopic hairs) and mucus to trap and move inhaled particles out of the airways
- 12. membrane The lining of the lungs
- 13. Thin-walled air sacs in the lungs where gas exchange occurs
- 15. Throat