Conversation so far:
where does the most absorption of nutrients occur
Absorption of the majority of nutrients takes place in the jejunum.
how does the absorption occur in the jejunum
The jejunum is specialized for the absorption through its lining by enterocytes: small nutrient particles which have been previously digested by enzymes in the duodenum.
where is the jejunum located
The jejunum is the midsection of the small intestine, connecting the duodenum to the ileum
how many sections of the small intestines are there
The small intestine has three distinct regions – the duodenum, jejunum, and ileum.

Question: what is the function of the third region
Self-contained rewrite: what is the function of the ileum