what does the digestive system consist of
Image: The large intestine. The human digestive system consists of a long muscular tube and several accessory organs such as the salivary glands, pancreas and gall bladder. It is responsible for food ingestion and digestion, absorption of digestion products and the elimination of undigested materials. structure at the bottom of the stomach known as the pyloric sphincter controls the entry of chyme into the first part of the small intestine, called the duodenum. Ducts from the gall bladder and pancreas feed fluids rich in bile salts and digestive enzymes into the duodenum.