2022年11月9日 · The jejunum is the middle portion of the small intestine, connecting the first portion of the small intestine (duodenum) with the last section (ileum).

2021年11月11日 · The jejunum makes up about two-fifths of the small intestine. The main function of the jejunum is absorption of important nutrients such as sugars, fatty acids, and amino acids.

Despite its name, your small intestine is the longest section of the gastrointestinal tract, measuring about 22 feet long. Its inner lining is also impressively large, thanks to microvilli. These are the tiny, finger-like projections lining the wall of your small intestine. They increase the surface area that absorbs nutrients.

2023年10月30日 · The jejunum is the middle of the three parts of the small intestine between the duodenum and ileum. Its arterial supply is provided by the jejunal arteries, while the innervation by the celiac and superior mesenteric plexi together with the vagus nerve.

2025年1月16日 · Jejunum is the second of the three segments which, together, make up the small intestine. The beginning of the jejunum is clearly marked by the duodenojejunal flexure, encircled by the Ligament of Treitz.

The jejunum is the second part of the small intestine in humans and most higher vertebrates, including mammals, reptiles, and birds. Its lining is specialized for the absorption by enterocytes of small nutrient molecules which have been previously digested by enzymes in the duodenum .

2025年2月13日 · Anatomically, the small bowel can be divided into three parts: the duodenum, jejunum, and ileum. In this article, we shall examine the anatomy of the small intestine – its structure, neurovascular supply, and clinical correlations.

2022年7月22日 · They jejunum is the largest section of the small intestine. It is the chief of nutrient absorbtion in the digestive system. Learn about the mouth, stomach, intestines and the whole GI track.

The jejunum is located between the duodenum and ileum in the small intestine and plays a crucial role in nutrient absorption. The small intestine is a vital component of the digestive system, consisting of three main parts: the duodenum, jejunum, and ileum.

Understanding what the jejunum is reveals its critical role within our digestive system—facilitating nutrient absorption while maintaining overall gut health. Its unique structure allows it to efficiently absorb essential nutrients necessary for our bodies’ daily functions.