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Study Stack 2: PHYS
Week 12
| Question | Answer |
|---|---|
| By the time the blood leaves the lung capillaries to return to the heart, what percentage of the blood’s hemoglobin has united with oxygen? | 97% |
| One hundred milliliters of arterial blood contains approximately what volume percent of oxygen? | 20% |
| When the pressure in the lung is greater than atmospheric pressure: | Expiration occurs |
| About 98.5% of the oxygen carried by systemic arterial blood is attached to: | Hemoglobin |
| The vital capacity is equal to the sum of the: | inspiratory reserve volume, tidal volume, and expiratory reserve volume |
| A type of breathing characterized by gradually increasing tidal volume for several breaths followed by several breaths with gradually decreasing tidal volume is: | Cheyne-Stokes respiration. |
| Which of the following is not a regulated process associated with the functioning of the respiratory system? | Control of cell metabolism rate |
| Spirometry is used to measure all of the following EXCEPT: | Total lung capacity |
| The _____ represents the largest volume of air an individual can move in and out of the lungs. | Vital capacity |
| During inspiration, as the size of the thorax increases, the | intrapleural and alveolar pressures decrease. |