论文部分内容阅读
移居到高原地区的健康人,由于低气压,尤其是随着海拔增高,长期慢性乏氧,可引起继发性红细胞增多症,这是医务工作者很熟知的。文献①谈到在移居者适应这种缺氧环境中血液成份及血容量的变化,初期是相对性的,由于缺氧对植物神经系统的刺激,引起反射性的脾脏收缩,从而逼出贮存的红细胞,而进一步是骨髓蒙受缺氧的刺激所引起的代偿性红细胞生成加强。对其原因分析,除了氧分压降低外,强热的紫外线照射和人体对高原气候
It is well known to medical practitioners that healthy individuals who migrate to the plateau may experience secondary polycythemia due to low air pressure, especially as altitude increases and chronic chronic hypoxia. References ① talking about migrants to adapt to this hypoxia environment, changes in blood components and blood volume, the initial is relative, due to hypoxia on the autonomic nervous system, causing reflex spleen contraction, thus extracting stored Erythrocytes, and further the compensatory erythropoiesis of the bone marrow is stimulated by hypoxia. Analysis of its reasons, in addition to reducing the partial pressure of oxygen, the intense heat of ultraviolet radiation and the human body on the plateau climate