Question

what is villi?explain?

Answer 1

Here is your answer:

Capillaries move blood the entire length of the villus. When the villi absorb nutrients like water soluble vitamins, amino acids and sugars, they are transported into the capillaries for distribution and use throughout the body. The villi also contain vessels called lacteals.

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Answer 2

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Capillaries move blood the entire length of the villus. When the villiabsorb nutrients like water soluble vitamins, amino acids and sugars, they are transported into the capillaries for distribution and use throughout the body. The villi also contain vessels called lacteals

Right now, you have inside of you a long, coiled mass of small intestine. The average person has an astounding 23 feet of small intestine! The fact that the human body has invested that much length and interior space for absorption of nutrients shines a light on how crucial it is for our survival. The simple length, however, does not even come close to describing the amount of surface area the small intestine contains. Let's take a minute, do a little math, and look a little closer at your small intestine.

If we could take out your small intestine, lay it out in a 23-foot straight line, and open up the tube so it lies flat (about 0.22 feet wide), we could determine the average surface area of your small intestine by multiplying the length of 23 feet by the width of 0.22 feet to get the interior surface area of five feet squared. That is, you have five feet squared of intestinal surface area to use for absorbing nutrients from your meals. Now, what would you say if I told you that the actual surface area of the small intestine was closer to 3,200 feet squared? Impossible? Read on.

get more on -: https://study.com/academy/lesson/villi-fucntion-definition-structure.html

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