由支气管供应空气，而肺动脉完成对肺部的供血，它们俩协同工作将将空气中的氧气溶入血液，并将二氧化碳排出体外。
The bronchi supply air and pulmonary arteriessupply blood to the lungs. Together they take in air from theatmosphere, oxygenate the blood, and excrete the carbon dioxide backout of the body.
目的：评价核素显像检测对断肢再植术后远端血液供应(简称血供)及其功能恢复的作用。
AIM: to evaluate the effect of radionuclide imaging on blood supply to the distal end of affected extremity and functional restoration after replantation of severed limb.
肺梗死是出血性梗死，由于肺是双重血液供应的，支气管动脉可继续供血，但不能阻止梗死的发生。
A pulmonary infarct is hemorrhagic because of the dual blood supply from the non-occluded bronchial arteries which continue to supply blood, but do not prevent the infarction.
肺梗死是出血性梗死，由于肺是双重血液供应的，支气管动脉可继续供血，但不能阻止梗死的发生。
A pulmonary infarct is hemorrhagic because of the dual blood supply from the non-occluded bronchial arteries which continue to supply blood, but do not prevent the infarction.
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