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一些孩子爱吐唾液。有一个儿童吐的,也有几个儿童嬉闹互吐的,这既不文明又不卫生,同时对自身健康也不利。据研究,成年人每天分泌唾液约1-1.5升,唾液中除了99.4%是水份外,还有钾、钠、钙、磷等元素和蛋白质、抗体(王要是分泌型免疫球蛋白A),粘液素及各种酶类。除此以外,唾液尚有润滑、冲洗、浸湿、稀释、促进血液凝固、抗菌、治疗、固定、消化等作用。如唾液内的粘液素,使口腔保持润滑
Some children love to spit saliva. There is a child vomiting, there are several children frolic each other, it is neither civilized nor hygienic, but also to their own health is not good. According to the study, adult saliva secretion of about 1-1.5 liters per day, in addition to 99.4% of saliva is water, there are potassium, sodium, calcium, phosphorus and other elements and proteins, antibodies (Wang secret secretion of immunoglobulin A) Mucin and various enzymes. In addition, there saliva lubrication, washing, soaking, dilution, and promote blood coagulation, antibacterial, treatment, fixation, digestion and so on. Mucosin, such as saliva, keeps the mouth lubricated