What organs are contained in the umbilical region of the abdomen?

The umbilical region of the abdomen is centrally located and typically contains parts of the small intestine, specifically the ileum and jejunum, along with sections of the large intestine. This includes the duodenum, which is the first part of the small intestine immediately following the stomach. The presence of both the stomach and duodenum in this region is significant because they are involved in the digestive process, with the stomach breaking down food and the duodenum continuing that process by introducing bile and pancreatic juices.

In contrast, the heart and lungs are located in the thoracic cavity, whereas the liver and gallbladder are situated in the upper right quadrant of the abdomen, and the spleen and appendix are found in different regions (the spleen being in the upper left quadrant and the appendix in the lower right quadrant). This anatomical positioning clarifies why the stomach and duodenum are appropriately identified as containing organs in the umbilical region.