Compléter Digestion and digestive systemVersion en ligne Filling the gaps exercise about digestion and the digestive system par Martín Vicente 1 tube undigested mixed faeces ill small mouth teeth liquids food nutrients nutrients oesophagus long small small energy expelled digestion large digestive eat nutrition paste undigested blood Trough we obtain the nutrients and we need . Trough the process of we obtain nutrients from the food we . The system begins in the and ends in the anus . It consists of one tube called the digestive . Indigestion is when we do not digest properly and we feel . HOW THE DIGESTIVE SYSTEM WORKS 1 . In our mouth , our break up and chew the food into pieces . The food is with saliva . 2 . The food goes down the to the stomach . It is transformed into a . The paste contains we need , and some parts that we do not need . 3 . The paste goes into the intestine . Here it mixes with special . 4 . The from the paste are absorbed into the in the intestine . 5 . The parts go into the intestine . They form solid . This is waste . Waste is through the anus .