The greater the alveolar ventilation, the more CO2 is removed from the body per unit time. In the normal steady state, the brain regulates ventilation to keep the pCO2 at 40millimeters of mercury (mm Hg).
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- 肺泡通气量越大,单位时间内从机体排出的co2就越多。在正常静息状态下,大脑可以调节呼吸使Pco2维持在40mmHg(5.;3kPa)。