Retinal oxygenation from the choroid in hyperoxia.
Retinal oxygenation from the choroid in hyperoxia.
复制标题
高氧状态下脉络膜的视网膜氧合。
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
M. Landers
中科院分区：
文献类型：
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作者：
M. Wolbarsht;E. Stefánsson;M. Landers
猫脉络膜极高的血流速度使脉络膜氧分压上升到接近动脉血氧分压的水平，即使在富氧呼吸的情况下也是如此。猫视网膜前玻璃体的极谱氧分压测量表明，当在一个或更少的大气中使用富氧呼吸混合物时，脉络膜中的高PO2可将视网膜内的氧分压提高到血红蛋白的饱和PO2以上。
The extraordinarily high rate of blood flow in the cat choroid allows the choroidal oxygen tension to rise to levels close to the arterial PO2, even with oxygen enriched breathing mixtures. The high PO2 in the choroid can elevate the oxygen tension of the inner retina above the saturation PO2 of hemoglobin when oxygen enriched breathing mixtures at one atmosphere or less are used as shown by polarographic oxygen tension measurements in the preretinal vitreous in cats.