By the time inspired air reaches the respiratory exchange surfaces, the partial pressure of water (water vapor pressure) in this gas mixture is __________. Assume normal body temperature (37 °C).

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Physiology Test Question

By the time inspired air reaches the respiratory exchange surfaces, the partial pressure of water (water vapor pressure) in this gas mixture is __________. Assume normal body temperature (37 °C).

	(A) 10 mm Hg
	(B) 37 mm Hg
	(C) 47 mm Hg
	(D) 100 mm Hg
	(E) 760 mm Hg

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Posted: Thursday, January 1, 2015