GENERAL HISTOLOGY

Detailed explanation-1: -The middle part of your small intestine is the jejunum. The jejunum absorbs most of your nutrients: carbohydrates, fats, minerals, proteins, and vitamins.

Detailed explanation-2: -The walls of the small intestine absorb water and the digested nutrients into your bloodstream. As peristalsis continues, the waste products of the digestive process move into the large intestine.

Detailed explanation-3: -The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for efficient food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the bloodstream.

Detailed explanation-4: -The presence of small finger-like projections called villi in the duodenum aids in food absorption. The jejunum has an enterocyte cell lining that digests small nutrients with the help of digestive enzymes. The ileum aids in the absorption of bile salts, vitamin B12, and other byproducts.