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唾液俗称“口水”,是一种五色无味的半透明的液体,含有泡沫,接近中性。一般健康人每日可分泌唾液约1～1.5升。有人认为口水微不足道,嘴一张就吐一口,甚至少数人有吐口水的习惯。口水真的无关紧要吗? 假如人们的口腔里没有口水的话,那么,我们就无法咽下食物,甚至我们的嘴巴也张不开。我们的舌头之所以能在口腔里运转自如,完全是因为有口水这种特殊的“润滑油”。一旦失去这种“润滑油”,舌头就会和上腭或者下腭的表皮粘合起来,口腔内的一整套“机械”也就无法运转了。
Saliva, commonly known as “saliva,” is a colorless, semitransparent liquid that contains a foam that is nearly neutral. General healthy people can secrete saliva about 1 to 1.5 liters per day. Some people think that saliva is insignificant, a mouth to spit, and even a few people have the habit of spitting. Does it really matter if saliva? If people do not have saliva in their mouths, then we can not swallow food or even open our mouths. The reason why our tongue works in the mouth is entirely due to the special “lube” of saliva. Once you lose this “lube,” the tongue sticks to the epidermis of the palate or lower palate and the entire set of “mechanics” in the mouth will not function.