Quiz Answer Key and Fun Facts
1. During spirometry (measurement of gas coming in and out of the lungs), IRV, or inspiratory reserve volume, is measured at which point?
2. At functional residual capacity (FRC), the lung tries to contract outwards and the chest wall tries to contract inwards.
3. What is transpulmonary pressure?
4. In a normal adult, the recoil of the chest wall and the lungs are equal, creating a intrapleural pressure of -5 cm H2O. What happens to the recoil in a person with emphysema?
5. To generate gas flow during inspiration, the pressure in the atmosphere must be higher than the pressure in the alveoli.
6. What must happen to the transpulmonary pressure to bring about a change in lung volume?
7. A major determinant of compliance is surface tension. If two fluid molecules are adjacent, compliance will be increased.
8. What is the name of the liquid lipoprotein which lowers surface tension?
9. Resistance to lamina flow can be calculated with the driving pressure and the flow rate. What is this law known as?
10. At the onset of forced expiration, the intrapleural pressure and pressure in the alveoli are both negative.
Source: Author Milky1989
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