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3 lis 2023 · The main functions of the small intestine are to complete digestion of food and to absorb nutrients. Dysfunction of the small intestine can bring you some uneasy experiences such as diarrhea while travelling or worse, on a date. This article will discuss the anatomy, function and neurovasculature supply of the small intestines. Contents. Anatomy.
- Blood Supply and Innervation
The duodenum receives both sympathetic and parasympathetic...
- Histology
Nervous tissue Nervous tissue is made of cells (neurons and...
- Ligament of Treitz
Wenzel Treitz described two structures that make up the...
- The Pelvic Cavity
A similar situation to that previously described also exists...
- Jejunum
The transition from the extraperitoneal ascending part of...
- Ileum
The small intestine is composed of three distinct parts, the...
- Blood Supply and Innervation
The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross the intestinal lining into your bloodstream.
The small intestine absorbs about 90 percent of the water you ingest (either as liquid or within solid food). The large intestine absorbs most of the remaining water, a process that converts the liquid chyme residue into semisolid feces (“stool”).
The Large Intestine Completes Absorption and Compacts Waste. Chyme passes from the small intestine through the ileocecal valve and into the cecum of the large intestine. Any remaining nutrients and some water are absorbed as peristaltic waves move the chyme into the ascending and transverse colons.
Elimination describes removal of undigested food contents and waste products from the body. While most absorption occurs in the small intestines, the large intestine is responsible for the final removal of water that remains after the absorptive process of the small intestines.
Function. What does the small intestine do? Your small intestine turns semi-solid food into liquid so your body can absorb the nutrients you need. To do that, your small intestine: Delivers digestive juices and enzymes that combine with bile to allow the digestive process.
The intestines have lots of tiny folds in them which create a large surface area for absorbing nutrients and water. In the small intestine there are also specialised structures called villi...
