What are the three sections of the small intestine and what role does each section play in digestion or absorption?

The three sections of the small intestine are the duodenum,

Explanation:

The duodenum

It receives chyme from the stomachs

Its intestinal cells enzymes such as secrete amylase, sucrase, and lipase enzymes that break down fats and sugars.

The jejunum

It is covered in villi and microvilli giving the name THE PRINCIPAL SITE of digestion.

the ileum.

Aid absorption e.g. amino acids, lipids, fat-soluble vitamins, and vitamin B12.

The three sections of the small intestine are the duodenum, jejunum and the ileum

Explanation:

Duodenum: The beginning and the shortest part of the small intestine where iron is absorbed. Duodenum is shaped like a letter "C.

Food passes from the stomach to duodenum through a muscle called the pyloric sphincter.

Jejunum: The middle part of the small intestine where sugars, amino acids, and fatty acids are absorbed.

Ileum: The last part of the small intestine where vitamin B12, bile acids, and other nutrients are absorbed

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.

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