Article Summary
In the article, efficient discussions focus on the structure of the small intestines and how the system makes the absorption process a success. Details are provided on how food passes into the blood vessels through diffusion in the walls of the small intestines. The structure of the intestines has its inner walls covered with folds of finger-like projections called the villi. The villi are further branched into microvilli, the essential part of the absorption process. The finger-like structure increases the surface area of absorption, making the food nutrients readily available for use in the body. The villi further transport the food nutrients to a network of capillaries and vessels close to the surface. Intestines are therefore responsible for food absorption through diffusion into the human body.