口腔是消化管道的开端,俗称为嘴,咀嚼离不开嘴。纳五谷、受五果、品五味是嘴的职责。嘴因有“吃喝”技艺而被尊为“纳受管”。 嘴的组成极为复杂:上下颌骨承托牙列,十六组肌肉内外缠绕,围成口裂,组成嘴形;“不烂之舌”附着于口底后部,蜿蜒于口腔之中,是嘴内最活跃的“软件”;三对主力大腺分列口底两侧软组织之内,众多零星小腺散于满嘴粘膜之中,从各个角度喷洒液体,汇于口中即为唾液。唾液有冲刷沟凹缝 Oral cavity is the beginning of the digestive tract, commonly known as the mouth, chewing inseparable from the mouth. Satisfaction of grain, by five fruit, product taste is the mouth of five tastes. Mouth because of “eating and drinking” skills and was honored as “satisfied management.” The composition of the mouth is extremely complex: the mandibular supporting dentition, inside and outside the sixteen groups of muscle entangled, surrounded by a split, the composition of the mouth shape; “not bad tongue” attached to the back of the mouth, meandering in the mouth, Is the mouth of the most active “software”; three pairs of the main gland sub-bottom soft tissue on both sides of the mouth, many sporadic small gland scattered in the mouth mucosa, spraying liquid from all angles, sink in the mouth that is saliva. Saliva scour groove groove