Which part of the small intestine connects with the stomach?

The part of the small intestine that connects with the stomach is the duodenum. This is significant because the duodenum is the first section of the small intestine and plays a crucial role in the digestive process. It receives chyme (partially digested food) from the stomach along with bile from the liver and pancreatic juices from the pancreas, which are essential for further digestion and nutrient absorption. The duodenum is specifically designed to handle the acidic environment of the chyme coming from the stomach, neutralizing it and allowing subsequent processing of nutrients.

In contrast, the jejunum and ileum are the subsequent sections of the small intestine that are primarily involved in the absorption of nutrients and water. The caecum, meanwhile, is located at the beginning of the large intestine and does not connect directly with the stomach. Understanding the digestive anatomy helps clarify the roles and interconnections within the digestive system.