Saliva is secreted by ___________.
Salivary glands in mammals produce saliva which helps in lubricating the food, swallowing, digestion and prevention of tooth decay. The liver produces a greenish juice called bile, which is stored and concentrated by the gallbladder. The pancreas is a glandular organ of the digestive system. It lies in the upper left part of the abdomen. The pancreas secretes pancreatic juice. The stomach, an important organ for digestion, produces gastric juice comprising of hydrochloric acid, water, and enzymes.