The small intestine is lined with these?
The small intestine is lined with Villi.
What the consequence might be if the lining of the small intestine were completely smooth instead of having villi?
What are the three sections of the small intestine and what role does each section play in digestion or absorption?
The small intestine, unlike its name suggests, is a very long tube between the stomach and large intestine. The 'small' label actually refers to the diameter of the intestine, which is considerably less than the large intestine. The length of the small intestine is necessary to absorb as many nutrients as possible. Along with that, the small intestine is lined with villi. These villi are little fold in the intestine to increase surface area of…
What would be the advantage of having a small intestine lined with villi as opposed to one with a smooth inner lining?
I am assuming you mean the small intestine as the large intestine only transports water. Nothing is needed it just uses pressure and sort of ssqueezes stuff through and also it is lined with villi which are small micro-structures and they make the surface area of the small intestine bigger and therefore it is easier for things to travel through it (:.
The lumen of the small intestine is lined with microvilli, which are small hair-like tentacles that protrude from the lumenal surface. When nutrients get "trapped" in these microvilli while passing through the small intestine, they diffuse into the blood stream through various transporter mechanisms and elements. This is one of the reasons why your small intestine is so long, so that all the nutrients can be absorbed before passing into the large intestine where most…
The internal walls of the small intestine are lined with villi, which absorb nutrients from the intestine, into the bloodstream. Villi are hair-like protrusions, and because there are millions of them, it means that enough molecules are absorbed to ensure our survival, as there is a huge surface area.
The small intestine is lined with microscopic fingerlike strutcures called villi which increase the surface area of the small intestine fo absorption. The spaces between villi are like a sieve that absorb the food particles into the bloodstream. There are three types of villi. Intestinal Villi which lines the intestines, Chorionic Villi which is on the outer most membrane of a fetus and Arachnoid Villi which is on the arachnoid membrane of the brain.
The duodenum is only the first portion of the small intestine. The small intestine comprises the duodenum, the jejunum, and the ileum. Following the ileum of the small intestine is the ileocecal valve, which separates the small intestine from the large intestine. The duodenum is separated from the stomach by the pyloric sphincter.