sc0095 - 33 GAS EXCHANGE — VENTILATION RESPIRATION...

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Unformatted text preview: 33 GAS EXCHANGE — VENTILATION - RESPIRATION Psychologist Abraham Maslow prioritized all human needs, which category was the top priority? Biological needs: Most urgent biological need: Oxidation of carbon compounds, 02 is H+ accepter >6C02+6H20 CGH1206 "' 5 02 Name of this process? Oxygen in the Environment Composition of air + ? N2: %, 02: °/o, Ar: %, C02: °/o tion of air is high & constant, ~ 210 ml 02 L'1 of air mm Hg (sea level) x = mm Hg 02 concentra Air (barometric) pressure = 02 partial pressure = Pressure of air 02 availability no problem, but pressure can be. Example: high altitudes, at 6,000 meters air pressure drops to 380 mm Hg, hence, 02 partial pressure is 380 x 0.2095 = mm Hg (too low); 02 still 21%, however, not enough pressure to force 02 into lungs. ...
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