What role does the tongue take in digestion?

The tongue is a highly mobile muscular organ that performs a variety of functions in digestion. 1. When food enters the mouth, the tongue evaluates its quality and taste using receptors (salty, sweet, sour, bitter). 2. From receptors, a nerve impulse with information about food enters the brain. The work of all glands involved in digestion (salivary, pancreas, liver) is turned on. Intestinal activity is also activated. 3. The tongue helps chop the food by turning it over. 5. Moves food for swallowing.