Which portion of the stomach is most superior?

The fundus is the most superior portion of the stomach. It is located above the level of the body (or corpus) of the stomach and is the area that bulges upward, forming the dome-shaped top. This anatomical position is important because it serves various functions, such as accommodating the volume of gas that may accumulate after digestion. The fundus also plays a role in the storage of undigested food and the initial mixing with gastric juices. Understanding the anatomy of the stomach is crucial for recognizing how it facilitates digestion and how various conditions may affect its function.