Eating and drinking

Oesophagus
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.

Card 3

Front

Small intestine

Back

Preview of the front of card 3

Card 4

Front

Large intestine

Back

Preview of the front of card 4

Card 5

Front

Salivary glands

Back

Preview of the front of card 5
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