What is villi's function?
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Answers
Answer:
villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.
Answer:
The inner walls of the small intestine have thousands of finger-like outgrowths. These are called villi (singular villus).
The villi increase the surface area for absorption of the digested food. The surface of the villi absorbs the digested food materials. The absorbed substances are transported via the blood vessels to different organs of the body where they are used to build complex substances such as the proteins required by the body. This is called assimilation.
What are villi? What is their location and function?
What are villi? What is their location and function?Definition
The tiny projections on the inner surface of the small intestine which help in absorbing the digested food are called villi. These helps to increase the surface area of intestinal walls.
Location
These are located in the inner walls of the small intestine.
Functions
1)Their function is to increase the surface area of the small intestinal wall for absorption of the digested food.
2) These projections absorb the protein molecules and help in the transfer of the proteins to all cells and tissues.
3) Many blood vessels are present within these villi, that help in the absorption of digested food and carry it to the bloodstream. Later, from the bloodstream, the absorbed food is delivered to each and every cell of the body.