The teeth are the start of the digestive system.Humans have two sets of teeth your baby teeth and adult teeth. There are five types of teeth we have wisdom teeth,canines,molars, incisors and premolars . The premolars and molars are at the back for crushing. Incisors are sharp for biting food. The canines are for griping and tearing food. Did you know adults have 32 teeth and children have 20 teeth.
The food in your stomach hangs around for four hours.while the food sits there more enzymes go to work on it breaking things down like proiteins that the stomach can use. The stomach kills a lot of bacteria so we don’t become sick.