渗出物(exudate)或渗出液,是指生物体通过毛孔或伤口排出的液体;排出液体的过程,称为渗出(exudation,exuding)[1][2][3]

植物界的渗出物有天然油树脂、香膏以及胶性油树脂[4]

动物界的渗出液是炎症时渗出所形成的物质。人类是由于血管壁通透性升高或淋巴系统病变等原因,液体从血管内渗出到间质体腔体表。渗出液含有较多的蛋白质和细胞成分,肉眼见混浊,一般能自凝[5]

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