The celiac plexus is a network of nerves located in the upper abdomen. It is responsible for regulating many of the digestive functions of the body. There are several other terms used to refer to the celiac plexus, including the celiac ganglion, solar plexus, and the epigastric plexus. The term "celiac ganglion" refers to the group of nerve cell bodies within the celiac plexus, while "solar plexus" is a broader term used to refer to the entire abdominal plexus. "Epigastric plexus" is another term that refers to the abdominal nerve network, specifically in the region just above the stomach. Ultimately, all of these terms describe the same important group of nerves that play a critical role in digestive function.