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3 Νοε 2023 · The small intestine is the longest part of the digestive system. It extends from the stomach to the large intestine and consists of three parts: duodenum, jejunum and ileum. The main functions of the small intestine are to complete digestion of food and to absorb nutrients.
Your small intestine (small bowel) is an important part of your digestive system. It connects your stomach to your large intestine. You rely on your small intestine to extract nutrients from the food your eat. Your small intestine: Breaks food down. Absorbs nutrients and water. Moves food along your gastrointestinal tract.
Most of the digestive enzymes in the small intestine are secreted by the pancreas and enter the small intestine via the pancreatic duct. These enzymes enter the small intestine in response to the hormone cholecystokinin, which is produced in response to the presence of nutrients.
21 Απρ 2024 · The Duodenum. The most proximal portion of the small intestine is the duodenum. Its name is derived from the Latin ‘duodenum digitorum’, meaning twelve fingers length. It runs from the pylorus of the stomach to the duodenojejunal junction. The duodenum can be divided into four parts: superior, descending, inferior and ascending.
Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients.
The duodenum receives pancreatic enzymes from the pancreas and bile from the liver and gallbladder. These fluids, which enter the duodenum through an opening called the ampulla of Vater, which contains the sphincter of Oddi, are important in aiding digestion and absorption.
20 Απρ 2024 · Function. The small intestine's principal function is to break down food, absorb nutrients the body needs, and excrete unnecessary components. This gastrointestinal segment also participates in immune functions, acting as a barrier to intraluminal bacteria.
