3. something inserted or to be inserted. 4. an extra leaf or section, as an advertisement, printed independently, for binding or tipping into a book or periodical. [1520â30; < Latin inserere to put in, insert =in- in-2 + serere to link together] inâ¢sertâ²aâ¢ble, adj.
Saliva is needed for the proper functioning of the tongue. A dry tongue can't taste a thing so saliva helps the tongue and our sense of taste by keeping it wet. Saliva moistens food and helps to break it down, which in turn makes it easier for the tongue to push the food to the back of the mouth for swallowing.
One of the main functions of teeth is the mastication of the food, For the proper and faster digestion of the food, the act of swallowing of the food is preceded by its cutting, chopping and grinding by the teeth.