Digestive glands are those glands which releases digestive juices in our stomach to break down food into simpler substances and to produce energy by the absorbed food .
some digestive glands are-
1.pancreas which release pancreatic juice
2.liver which releases bile juice
3.salivary glands which are located in the interior of our mouth and release saliva in the food when we chew food which helps in digestion of food
4.stomach release hydrochloric acid which kill germs present in food
hope this helps you