Liver - Chemical factory - produces lots of chemicals including bile , Small intestine - The main site of nutrient absorption into the bloodstream , Pancreas - Digestive juices (enzymes) are produced here. Also regulates blood sugar levels by secreting insulin , Large intestine - Site of water reabsorption from undigested waste, leaving a solid behind called faeces , Oesophagus - A muscular tube that connects the mouth to the stomach. The food bolus is propelled by peristalsis towards the stomach , Rectum - Stores faeces before egestion , Anus - Muscular ring which controls the exit of faeces from the body, Mouth - Both physical and chemical digestion occur here. Digestion begins here, Salivary glands - Produce an enzyme that digests starch , Stomach - The acidic environment prevents microorganisms from causing harm and provides the optimum environment for pepsin to start digesting proteins. Physical digestion (churning motions) help to break down food into smaller pieces ,

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