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正常人血小板数量是多少算正常

更新时间: 2020-11-05 00:00:00     

血小板是人体负责止血的血细胞,正常范围是(100-300)*10^9/l,血小板总数高于正常或低于正常,都属于异常情况。

血小板(platelet)是从骨髓成熟的巨核细胞胞浆解脱落下来的小块胞质。巨核细胞虽然在骨髓的造血细胞中为数最少,仅占骨髓有核细胞总数的0.05%,但其产生的血小板却对机体的止血功能极为重要。血管创伤而失血时,其与凝血因子一起,借由结块作用,对血管受伤而出血的部位进行反应,进而形成凝血。

关键词: 正常人 血小板 数量 多少 正常

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