Answer :
The duodenum is the shortest region of the small intestine that receives chyme, bile, and pancreatic juices.
The region of the small intestine that is the shortest and receives chyme, bile, and pancreatic juices is the duodenum.
1. Anatomy: The small intestine is divided into three sections: the duodenum, jejunum, and ileum. The duodenum is the first and shortest section, located immediately after the stomach.
2. Chyme: Chyme is the partially digested food mixture that passes from the stomach into the small intestine. The duodenum is the primary site where chyme enters the small intestine.
3. Bile: Bile is a substance produced by the liver and stored in the gallbladder. It is released into the duodenum through the common bile duct. Bile plays a crucial role in the digestion and absorption of fats.
4. Pancreatic juices: The pancreas produces and secretes pancreatic juices that contain enzymes responsible for the digestion of carbohydrates, proteins, and fats. These pancreatic juices are also delivered into the duodenum through the pancreatic duct.
5. Digestive processes: In the duodenum, chyme mixes with bile and pancreatic juices. The enzymes in the pancreatic juices further break down the food particles into smaller molecules, facilitating absorption in the subsequent parts of the small intestine.
6. Transit time: The duodenum has a relatively short length compared to the jejunum and ileum, which allows for rapid processing of the chyme, bile, and pancreatic juices.
Overall, the duodenum serves as a critical site for the initial digestion and absorption of nutrients, as it receives chyme from the stomach and important digestive secretions such as bile and pancreatic juices.
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