名词
中文翻译：微动脉
同义词：
['precapillaries', 'precapillary venules']
例句：
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1.The skin's blood vessels are arranged in a network of capillaries and precapillary arterioles.
皮肤的血管以毛细血管和微动脉的形式排列成网络。
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2. The doctor examined the patient's fingertips for any signs of precapillary arterioles constriction.
医生检查了患者的手指，寻找任何微动脉收缩的迹象。
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3. The study found that the precapillary arterioles were dilated during exercise.
研究发现，在运动期间微动脉是扩张的。