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Digestive system - Coggle Diagram
Digestive system
Mouth
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Saliva
Saliva is a watery secretion in the mouth produced in the salivary glands. Saliva helps cleanse and moisten the mouth, including tongue and teeth.
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Human teeth
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Canines
Canines are more pointed than incisors, these are used for tearing food apart (4)
Premolars
Premolars are used for crushing and grinding food and also have broad surface and ridges on them (8)
Incisors
Incisors are chisel-shaped, they are used for biting of small pieces of food (8)
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Tooth decay
Plaque
Plaque is a sticky, soft, white substance composed of bacteria and other materials that form on teeth and can cause tooth decay
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Large intestine: approximately 1.5 metres in length, absorbs water from food, producing and absorbing vitamins, forming and pushing the faeces towards the rectum for elimination
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Anus: Last part of the digestive system, its below the rectum, its where stool comes out of the body
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Oesophagus: Fibrous-muscular tube, 25cm in lenght
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Small intestine: tube like organ, connects the stomach, approximately 20 feet long, folds many times, helps in digesting food from the stomach
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