Across
- 10. The zone that consists of tissues within the lungs where gaseous exchange occurs
- 12. Visceral pleura is the layer
- 13. Paired organs in the thoracic cavity enclosed by paired parietal pleural membranes
- 14. Ventilation at the start of exercise
- 16. Pulmonary ventilation when the alveolar pressure is higher than atmospheric pressure
- 19. Structures of the upper respiratory tract that drains into the nose and lowers the weight of the skull
- 20. The trachea is lined with
- 21. The specialized organ at the entrance to the respiratory system
- 22. An infection that inflames the air sacs in one or both lungs
- 23. Airways in the lungs that lead from the trachea to the bronchioles
- 25. Ribbed tube that leads to the lungs
- 26. Layman’s term for pharynx
- 29. It separates the thoracic and abdominal cavity
Down
- 1. Cavity where the lungs sit
- 2. The pontine respiratory group is in it
- 3. It is controlled by the tension of the vocal cords
- 4. Respiration where there is an exchange of gases in the tissues
- 5. The respiratory group that controls normal, quiet breathing
- 6. Breathing in, active process
- 7. Cells that secrete mucous
- 8. Helps moisten, warm and filter the air as it enters the nose
- 9. When gaseous exchange occurs across thin respiratory membranes
- 11. The instrument used to measure vital air capacity of the lung
- 15. Small sacs inside the lungs called
- 17. The amount of lobes in the right lung
- 18. Lobes of the lung are separated by these
- 22. 7% of carbon dioxide is dissolved in
- 24. Structure of the upper respiratory tract that separates the right and left nostrils
- 27. The volume of one breath
- 28. Structure connecting the pharynx and the trachea