Absorption of digested food takes place on the surface of villi which then goes to blood vessels. Transportation of absorbed food takes place in different parts of body by these blood vessels. Here, it is used for the formation of complex substances. This process is known as Assimilation. Glucose present in cells decomposes into carbon dioxide and water in the presence of oxygen and energy is released. The part of food which is not digested or absorbed is moved to large intestine.
Answers
Explanation:
Digested food is able to pass into the blood vessels in the wall of the small intestine through the process of diffusion.
The inner wall, or mucosa, of the small intestine is covered in wrinkles or folds called plicae circulares that project microscopic finger-like pieces of tissue called villi, which in turn have finger-like projections known as microvilli.
The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.
Each villus transports nutrients to a network of capillaries and fine lymphatic vessels called lacteals close to its surface.
The inner wall, or mucosa, of the small intestine is covered in wrinkles or folds called plicae circulares that project microscopic finger-like pieces of tissue called villi, which in turn have finger-like projections known as microvilli.
The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.