我们知道,人的舌头由肌肉和黏膜构成,它含有丰富的神经和血管。舌背的表面有味觉细胞组成的味蕾,因此,我们能品尝出酸、甜、苦、辣、咸的味道。舌头还可以协助咀嚼食物,辅助发音。祖国医学用观察舌苔、舌质的变化来 We know that the human tongue consists of muscle and mucous membranes, which are rich in nerves and blood vessels. On the back of the tongue there is a taste bud consisting of taste cells, so we can taste sour, sweet, bitter, spicy and salty flavors. Tongue can also help to chew food, aiding pronunciation. Motherland medicine to observe the tongue, tongue changes