Gas Exchanges in Body

Gas Exchanges in Body - Gas Exchanges in Body Daltons Law...

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Gas Exchanges in Body Dalton’s Law of partial pressures: total pressure exerted by a gaseous mixture is the sum of the pressures exerted by each gas in the mixture (P T = P 1 + P 2 + P 3 …) Kevin Kelleher, MTC Biology 211 Study Notes Exam 2 19 - example: partial pressure of oxygen in air (P 02 = 760 mm Hg x .209 (fraction of air occupied by oxygen) = 159 mm Hg Henry’s Law: when a mixture of gases contacts liquid, each gas dissolves in liquid in proportion to its partial pressure - volume of a gas that will dissolve in a liquid also depends on its solubility in the liquid & temperature of liquid - hyperbaric oxygen chambers use oxygen at pressures higher than atmospheric pressure to force more oxygen into a patient’s blood to treat carbon monoxide poisoning or hypoxia - if Po 2 > 2.5 mm Hg, oxygen toxicity can result as harmful free radicals form Composition of Alveolar Gas : alveolar gas contains more carbon dioxide and less oxygen than the atmosphere due to oxygen leaving and carbon dioxide entering alveoli
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Gas Exchanges in Body - Gas Exchanges in Body Daltons Law...

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