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关节液内含有来自滑膜层血管的血浆渗透液和滑膜细胞产生的粘液素。其主要作用是供给关节软骨的营养和作为关节活动的润滑剂。正常人关节液是淡黄、透明和粘稠的液体,不会凝固,其量少而不能用穿刺方法取得。关节积液意味着关节内有病变。关节液的变化可反映关节疾病的性质和病理生理的改变。
Synovial fluid contains synovial blood vessels from the plasma permeate and synovial cells produce mucus. Its main function is to supply the nutrition of articular cartilage and lubricate as joint activity. Normal joint fluid is a yellowish, transparent and viscous liquid that does not solidify and its amount can not be obtained by puncture. Joint effusion means there are lesions in the joints. Changes in synovial fluid can reflect the nature of joint disease and pathophysiological changes.