human physiology Study Set 1

Biology

Quiz 18 :
Gas Exchange and Transport

Quiz 18 :
Gas Exchange and Transport

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High carbon dioxide concentration in body fluids is called
Free
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Answer:

E

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The partial pressure of oxygen in arterial blood is approximately ________ mm Hg.
Free
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Answer:

E

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The partial pressure of carbon dioxide in the cells of peripheral tissues is approximately ________ mm Hg.
Free
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Answer:

B

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Of the factors that influence diffusion of respiratory gases,the most variable and,therefore,important factor to consider is the
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The process by which dissolved gases are exchanged between the blood and interstitial fluids is
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The lung pathology most likely to result from certain kinds of heart disease is
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Hypoxia resulting from fluid accumulation in the alveoli that cannot be corrected by oxygen therapy can lead to
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If the partial pressure of oxygen in both air and water is 100 mm Hg,then the concentration of the oxygen is the same in the air and water.
True False
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The variables of oxygen consumption,cardiac output,and blood oxygen content are unrelated.
True False
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Which of the following characteristics makes hemoglobin's structure such a good match for its function as an oxygen carrier?
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Most of the oxygen transported by the blood is
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At a PO2 of 70 mm Hg and normal temperature and pH,hemoglobin is ________% saturated with oxygen.
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Which of the following would make the oxygen-hemoglobin curve shift right?
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Chronic hypoxia
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Most of the carbon dioxide in the blood is transported as
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In the medulla oblongata,the nucleus tractus solitarius contains the ________ of neurons.
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The most important chemical regulator of respiration is
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An increase in the level of carbon dioxide in the blood will
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The expiratory neurons control the ________ muscles,whereas the inspiratory neurons control the ________ muscles.
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If the neural connections between the pons and medulla are severed,breathing will stop.
True False
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