Physiology Final Stack
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| The vital capacity is equal to the sum of the: | inspiratory reserve volume, tidal volume, and expiratory reserve volume.
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| Excessive fluid in the pleural cavity would be most likely to cause: | decreased vital capacity.
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| Which of the following helps determine the amount of oxygen that diffuses into the blood each minute? ` | The total functional surface area of the respiratory membrane
Alveolar ventilation
The oxygen pressure gradient between alveolar air and incoming pulmonary blood
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| Dalton law states that the partial pressure of a gas in a mixture of gases is _____ to the total pressure of the mixture. | directly related to the concentration of that gas in the mixture and
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| Which of the following is not a regulated process associated with the functioning of the respiratory system? | Control of cell metabolism rate
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| The term used to describe the volume of air exchanged during normal inspiration and expiration is: | tidal volume.
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| Normal, quiet breathing is known as: | eupnea
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| 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%
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| One hundred milliliters of arterial blood contains approximately what volume percent of oxygen? | 20%
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| The PCO2 in the atmosphere is: | less than in the alveolar air.
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| Which muscles are used for forced expiration? | Abdominal muscles and internal intercostals
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| If the tidal volume of a given individual is 500 ml, then the anatomical dead space is approximately _____ ml. | 150
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| During inspiration, the expansion of the lungs causes: | a decrease in alveolar pressure.
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| Which of the following constitutes total lung volume? | Residual volume and vital capacity
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