Villus
A villus is a tiny, thin, fingerlike structure with a blood supply that sticks out from the surface. More than one villus is known as villi. Villi are located in different areas of the body. Most commonly, the term is used to describe the many tiny, fingerlike structures that stick out and are located in groups over the entire mucous surface (a type of thin sheet of tissue) of the small intestine. The intestine is a tube shaped structure that is part of the digestive tract. The small intestine is a part of the intestine that takes in all of the nutrients (healthy substances) that the body needs.
The villi help to increase the total area on the outside of the small intestine. Villi help absorb, move, and distribute some of the fluids and nutrients into the blood and lymphatic system. The lymphatic system is a system of vessels that drain lymph from all over the body back into the blood. Lymph is a milky fluid that contains proteins, fats, and white blood cells (which help......
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