some villi are located on the final part of the small intestine, jejunum.
some villi are located on the final part of the small intestine, jejunum.
on which final part of the small intestine, are some villi located?
jejunum
the small intestine is about 20 feet and goes behind the big large intestine then makes a mass of curly tube. the small intestine is divided into 3 parts: duodenum, jejunum and ileum. the duodenum receives particles from different organs like, the pancreas. the pancreas will start secreting things into the first section of the duodenum. the second part is the jejunum and it is located in the middle of the small intestine. when looking at a model, one cannot tell when it stops and starts, therefore, you'll need to look as logically as possible to try and figure out exactly where it is. then the final part of the small intestine is the ilium. the ilium is connected right into the large intestine. the ileum is connected right into the ileum cecum valve which is the beginning of the large intestine. the large intestine, also known as the large bowel, is the last part of the gastrointestinal tract and of the digestive system.  one disease that affects the lining of the gi tract. crohn’s disease is a chronic inflammatory condition of the gastrointestinal tract. crohn's most commonly affects the end of the small bowel (the ileum) and the beginning of the colon, but it may affect any part of the gastrointestinal (gi) tract, from the mouth to the anus. the article “crohn's disease of the large intestine” states that “ the  diagnosis of crohn’s disease  can sometimes be established or confirmed by examination of tissues of removed at laparotomy when resection of the intestinal lesions is indicated” (morson, 502). overall, crohn’s disease affects both large and small intestine.
abdominopelvic cavity
after this, the digesta is moved to the true stomach, the abomasum. this is the gastric compartment of the ruminant stomach. the abomasum is the direct equivalent of the monogastric stomach, and digesta is digested here in much the same way. this compartment releases acids and enzymes that further digest the material passing through. this is also where the ruminant digests the microbes produced in the rumen. digesta is finally moved into the small intestine, where the digestion and absorption of nutrients occurs. the small intestine is the main site of nutrient absorption. the surface area of the digesta is greatly increased here because of the villi that are in the small intestine. this increased surface area allows for greater nutrient absorption. microbes produced in the reticulorumen are also digested in the small intestine. after the small intestine is the large intestine. the major roles here are breaking down mainly fiber by fermentation with microbes, absorption of water (ions and minerals) and other fermented products, and also expelling waste. fermentation continues in the large intestine in the same way as in the reticulorumen.
ruminant