GENERAL HISTOLOGY

Detailed explanation-1: -The epithelial cells of the villi transport nutrients such as carbohydrates and amino acids from the lumen of the intestine into these capillaries and lacteals (lipids).

Detailed explanation-2: -Nutrients diffuse into the enterocytes and can enter either the capillaries or the lacteals. The capillaries take up water-soluble nutrients, which can then enter the bloodstream. And the lacteals take up fat-soluble nutrients, such as vitamins A, D, E, and K.

Detailed explanation-3: -The small intestine consists of hair-like minor projections called villi. These villi are comprised of capillaries as well as lymphatic vessels called lacteals. Lacteals are majorly involved in the absorption of fats and fat-soluble vitamins. The fat-soluble vitamins are vitamin A, D, E and K.

Detailed explanation-4: -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-5: -Absorption of the majority of nutrients takes place in the jejunum, with the following notable exceptions: Iron is absorbed in the duodenum. Vitamin B12 and bile salts are absorbed in the terminal ileum. Water and lipids are absorbed by passive diffusion throughout the small intestine.