absorption - The movement of substances through tiny holes into the bloodstream. Water and nutrients are absorbed through tiny pores in the lining of the intestines., anus - The opening at the end of the digestive tract. Solid waste is expelled by the body through the anus., bacteria  - Microscopic organisms that can be found living in the gut, bile - A substance produced by the body to break fats into tiny droplets. Bile is produced by the liver and released into the small intestine, where it helps breaks down fats., body system - A group of organs that work together to perform a function, chemical digestion - The breakdown of food by saliva, stomach acid and other digestive juices. Chemical digestion forms new substances., digestion - The breakdown of food into simple nutrients the body can absorb, digestive tract - The connected organs that food passes through as it is broken down, enzyme - A substance made by the body to speed up chemical digestion, faeces - Solid waste that remains after food is digested, gall bladder - A small pouch that stores bile before it gets released into the small intestine, gastric juice - A liquid released into the stomach to help with chemical digestion, large intestine - A wide tube where water is absorbed and most good bacteria live, liver - A large organ that produces bile to help digest fats, mouth - The entry point for food passing into the body.Biting and chewing help with physical digestion. Saliva helps with chemical digestion., nutrients - A substance that the body needs to take in to stay healthy, oesophagus - The tube that connects the throat to the stomach. Food is squeezed through the oesophagus by peristalsis, even if you're hanging upside down., organ - A body part that performs a specific function, peristalsis - Involuntary muscle contractions that push food through tubes. Peristalsis in the oesophagus and intestines moves food and liquid along the digestive tract., physical digestion - The breakdown of food by mashing, grinding, churning or mixing, rectum - The final section of the large intestine. The rectum temporarily stores faeces before they are expelled through the anus., saliva - A liquid released into the mouth to help with digestion and swallowing, saliva gland - An organ that produces a liquid to help with digestion in the mouth, small intestine - A long, narrow tube where most nutrients are absorbed by the body. The small intestine has a large surface area to efficiently absorb nutrients into the bloodstream. , stomach - A muscular pouch that churns and squeezes food into liquid. Churning and squeezing help with physical digestion. Gastric juices help with chemical digestion., tooth - A hard structure involved in physical digestion in the mouth, villus - A tiny finger-like structure on the lining of the small intestine. Villi increase the surface area of the small intestine, allowing nutrients to be absorbed more quickly.,

Digestive System

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