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Digestive System

Across
A hollow tube connecting the oral cavity to the stomach (separated from the trachea by the epiglottis). Food is mixed with saliva and then is moved in a bolus via the action of peristalsis
The final section of the alimentary canal, where water and dissolved minerals (i.e. ions) are absorbed. Consists of the ascending / transverse / descending / sigmoidal colon, as well as the rectum
A temporary storage tank where food is mixed by churning and protein digestion begins. It is lined by gastric pits that release digestive juices, which create an acidic environment
Takes the raw materials absorbed by the small intestine and uses them to make key chemicals. Its role includes detoxification, storage, metabolism, bile production and haemoglobin breakdown
Down
long, highly folded tube where usable food substances (nutrients) are absorbed. Consists of three sections – the duodenum, jejunum and ileum
Stores the bile produced by the liver (bile salts are used to emulsify fats). Bile is released into the small intestine via the common bile duct
Releases saliva to moisten food and contains enzymes (e.g. amylase) to initiate starch breakdown
Produces a broad spectrum of enzymes that are released into the small intestine via the duodenum. Also secretes certain hormones (insulin, glucagon), which regulate blood sugar concentrations
Stores & expels feces