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1.The precapillary arterioleis responsible for the distribution of blood tothe skin.
微动脉负责将血液分配到皮肤。
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2. In the precapillary arteriole, the diameter is about0.5 mm.
在微动脉中,直径约为0.5毫米。
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3.The precapillary arterioleis a small vessel that carries oxygenatedblood from the heart to the tissues.
微动脉是一条小血管,它将氧气丰富的血液从心脏输送到组织。