The digestive system

The stages of digestion

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Discover how digestion, a sequence of mechanical and chemical processes, gradually breaks down food into simpler elements called nutrients, which the organism is then able to use.


Understanding the principle of the transformation of food into nutrients
Familiarisation with the sequence of chemical and mechanical transformations that take place in the various parts of the digestive tract.

Course Plan

Lesson 1Transforming food
Lesson 2Mechanical and chemical transformation
Lesson 3Digestion: from mouth to anus
Lesson 4The mouth
Lesson 5The oesophagus
Lesson 6The stomach
Lesson 7The small intestine
Lesson 8The large intestine
Lesson 9Intestinal flora
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