Hollow tube connecting to the stomach. When food is in the mouth, it is mushed together with saliva and goes down the oesophagus to the stomach where is is stored.
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Stomach
The stomach is a storage room where food is mixed by churning. It is lined with gastric pits to release digestive juices.
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Small intestine
Long folded tube where food substances are absorbed. Inside it, there are three sections, the duodenum, the jejunum and ileum.
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Large intestine
Final part where water and dissolved minerals are absorbed. The rest of the water that is not needed passes through us.
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Salivary glands
Release saliva to moisten food and contains enzymes to help break down the starch. Parotid gland, submandibular gland and sublingual gland
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Pancreas
The pancreas makes varieties of enzymes that are released in the small intestine. Also contains insulin and glucagon. These help control blood sugars.
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Liver
The liver makes materials that the small intestine absorbs and uses them to make chemicals.
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Deficiency diseases - lack of an element in a diet
Lack of vitamin C. Very common among sailors. Rickets - lack of vitamin D, common in Nigeria. Thiamine - lack of vitamin B-1, most common in alcoholics.
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Types of foods
Carbohydrates - Protein - Dairy - Fruit and vegetables - Fats and sugars. What is a healthy diet? A healthy food is a food that contains a lot of nutrients, vitamins and minerals.
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Other cards in this set
Card 2
Front
Stomach
Back
The stomach is a storage room where food is mixed by churning. It is lined with gastric pits to release digestive juices.
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