Describe the process of ingestion of food

The ingestion of food is the process of intake of food by an organism. In humans, the mouth is responsible for the ingestion. The ingested food is processed by chewing and biting by the teeth and lubricated by the saliva so that it can be swallowed with the help of the tongue. Once ingested, the food is physically and chemically digested and it is called bolus. Upon swallowing, the bolus is transported to the stomach by the esophagus.