mucous
The small intestine contains tiny finger-like structures called villi, where absorption of nutrients takes place. Villi increase the surface area of the intestine for more efficient absorption of digested food molecules.
They are called villi.Also there are micro villi on villi.
Absorption of digested foodstuffs occurs in the small intestine.
Food is digested in the stomach, and this digestion continues to some degree in the small intestine. But it is largely in the small intestine that the nutrients are absorbed from the stream of digested materials. Anything not absorbed continues on to the large intestine for water extraction and further on to excrement.
Because of the villi
absorption
absorption
absorption
The colon (large intestine) is responsible for absorbing water and vitamin K from digested food. Water absorption helps to form solid waste, while vitamin K absorption is important for blood clotting and bone health.
Monosaccharides (simple sugars), amino acids (building blocks of proteins), and fatty acids (components of fats) do not require digestion before they can be absorbed by the small intestine. This means they can be directly absorbed into the bloodstream to be used by the body for energy and other functions.
Small Intestine
transportation. The small intestine is responsible for absorbing nutrients from digested food, while the blood circulates throughout the body to deliver these nutrients to cells for energy and other biological functions.