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人体进入高原低氧环境下,由于大气压下降,动脉低氧刺激外周化学感受器及呼吸中枢对二氧化碳敏感性增高,从而使肺的通气功能增加。肺通气功能增加有助于提高低氧环境下肺泡氧分压,减少从吸入气到混合静脉血之间的氧分压差,改善组织细胞的氧供应。这对于人体适应高原低氧有着十分重要的作用。为了防治高原适应不全症,加强高原建设和巩固国防,积极开展高原低氧生理学基础的研究是十分重要的。本文就我们于1981年11月,对进驻海拔3,720米新兵的最大呼吸流速——容量曲线测定结果作一初步总结报告。
The human body into the plateau hypoxia environment, due to the atmospheric pressure drop, arterial hypoxia stimulation of peripheral chemoreceptors and respiratory centers increased carbon dioxide sensitivity, so that the lung ventilation function increased. Increased pulmonary ventilation helps to increase alveolar oxygen pressure in hypoxia, reduce oxygen partial pressure from inhalation to mixed venous blood, and improve oxygen supply to tissue cells. This is very important for the human body to adapt to plateau hypoxia. In order to prevent and cure altitude sickness, to strengthen plateau construction and consolidate national defense, and actively carry out the plateau hypoxia physiological basis of the study is very important. In this paper, in November 1981, we made a preliminary summary report on the results of the maximum respiration rate-volume curve of 3,720-meter recruits at sea level.