What are the main functions in digestion of thea) mouth b) stomachc) small intestine

... The Digestive System What are the main functions in digestion of the a) mouth b) stomach c) small intestine The mouth takes in the food and uses the teeth and the salivary glands do break down the food so it could move onto the next phase. The teeth chew food while the salivary glands, liver, bile duct and pancreas produce digestive juices to break down food. The stomach is a L shaped, organ situated on the left side of the abdominal cavity beneath the diaphragm. At either end of this organ is a sphincter muscle which contracts and relaxes to control the movement of food in and out of he stomach. The stomach churns the food and releases gastric juices to help break it down. The gastric juices contain hydrochloric acid and enzymes such as pepsin. Hydrochloric acid kills any harmful bacteria and helps to dissolve the food. Pepsin begins the digestion

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