In mammals, it may be the principal site for iron absorption. The duodenum precedes the jejunum and ileum and is the shortest part of the small intestine.

“Duodenum,” translated from Latin, means “12 fingers,” a reference to its size. The length of your duodenum is approximately the width of 12 fingers placed side by side. To put this in …

Sep 7, 2025 · As part of the gastrointestinal tract, the duodenum plays an important role in digestion, enabling the absorption of nutrients from food (including vitamins, minerals, …

It is roughly horseshoe-shaped, with the open end up and to the left, and it lies behind the liver. On anatomic and functional grounds, the duodenum can be divided into four segments: the …

Nov 6, 2025 · 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 …

Oct 9, 2024 · The duodenum is the first part of the small intestine. It is located between the stomach and the middle part of the small intestine, or jejunum. After foods mix with stomach …

Mar 6, 2025 · The duodenum is the first part of the small intestine (3-8.5 m), followed by the jejunum and ileum (in that order); it is also the widest, shortest (25 cm), and most predictably …

The duodenum is made up of four primary segments: superior, descending, horizontal, and ascending duodenum. These are also known as the first, second, third, and fourth parts of the …

The duodenal papilla is surrounded by a semicircular fold superiorly and the sphincter of Oddi which is the muscle that prevents reflux of duodenal secretions into the bile and pancreatic ducts.

With regards to the function of the duodenum, it first receives chyme from the stomach and mixes in several digestive enzymes from the pancreas, liver and gallbladder. These enzymes flow …