The Respiratory System
Across
- 3. lipid and protein complex that helps reduce surface tension of alveolar fluid. prevents alveolar collapse. produced by type II alveolar cells
- 5. which capacity: residual volume + expiratory reserve volume (2 words)
- 8. which volume: amount of air you can inhale beyond tidal volume (2 words)
- 9. what kind of pressure is exerted by air surrounding body?
- 12. what kind of pressure is the pressure in the pleural cavity that fluctuates while breathing, and is always a negative pressure?
- 13. what kind of pressure is the pressure in alveoli, that always eventually equalizes with atmospheric pressure?
- 15. which volume: amount of air you can exhale with one breath (2 words)
- 17. active process, mediated by diaphragm and external intercostals
- 18. which capacity: total amount of air in lungs. inspiratory reserve volume + tidal volume + expiratory reserve volume + residual volume (2 words)
- 19. attraction of liquid molecules to one another at gas-liquid interface. tends to draw liquid molecules closer together, and causes alveoli to shrink to smallest size (2 words)
- 20. brings air into respiratory tract, cleanses, humidifies, and warms air. includes nose, pharynx, larynx, trachea, most bronchioles (2 words)
- 22. passive process, inspiratory muscles relax, thoracic cavity volume decreases and lungs recoil (2 words)
- 25. which capacity: tidal volume + inspiratory reserve volume
Down
- 1. what kind of pressure is the difference between intrapulmonary pressure and intrapleural pressure, and keeps the lungs from collapsing??
- 2. measure of how much stretch the lungs have (2 words)
- 4. gas flow changes _________ with resistance
- 6. which lung has 3 lobes?
- 7. active process, mediated by oblique and transverse abdominal muscles, as well as internal intercostal muscles (2 words)
- 10. passageway for food and air from level of soft palate to epiglottis
- 11. which capacity: maximum amount of air you can inhale or exhale. inspiratory reserve volume + tidal volume + expiratory reserve volume
- 14. site of gas exchange. includes respiratory bronchioles, alveoli (2 words)
- 16. which volume: amount of air you bring in/out with every breath
- 21. what kind of respiration: gas exchange between lungs and blood?
- 23. which volume: amount of air in lungs that must be present to keep them open
- 24. the site for entry/exit of blood vessels, bronchi, lymphatic vessels, and nerves