The small intestine serves to digest and absorb food. It continues the task of turning solid food into liquids. Your body can only digest liquids. It also pushes food through your body. In the process, it absorbs food and sends it through veins to your liver. The food is absorbed through extremely tiny projections called villi. A number of them are required so your body can get enough food to keep you alive. You have more than you need because humans were designed to be able to eat during periods of abundance and survive during famines. Your small intestine must have enough folds to give it enough surface area to have enough villi.
Because that is how it absorbs nutrients from food, and so there is enough space to fit the contents of the small intestine through it.
The small intestine needs a large internal surface area because that is how it absorbs the nutrients in food.
Because God made it that way! :)
villi
the small intestine has a large surface area because it allows nutrients to be absorbed into the body more quickly and easily.If there was a small surface area may-be most of our nutrients would end uo in the large intestine and out when we go to the toilet. To answer the final part of the question. What contributes? the length and elasticity of the small intestine contributes to it having a large surface area.
Small intestine has lots and lots of villi and microvilli for absorption, large intestine absorbs water and it has lots and lots of goblet cells that produce mucus so it's easier to remove waste (aka poop)
The large surface area of the small intestine is achieved by a combination of anatomical features such as the plicae circularis, the vili, and the microvilli.
small intestine
small intestine!
The large surface area of the small intestine is achieved by a combination of anatomical features such as the plicae circularis, the vili, and the microvilli.
The villi on the inner surface.
The villi on the inner surface.
It can cause internal bleeding
The answer is small intestine.
You mean to say why does the small intestine have an internal surface area, well this is because there are micro-villi which are folded finger-like projection that each increase the amount of space food can be absorbed.
The small intestine has small tiny projections called "villi". These projections increase the surface area for absorption. The large intestine however lacks these structures.