What is the role of the greater omentum in the abdominal cavity?

The greater omentum plays a significant role in the abdominal cavity primarily by storing fat and overlaying the intestines. This large fold of peritoneum, which hangs down from the stomach, is rich in adipose tissue, providing not only insulation but also acting as a source of energy. The fat deposits found in the greater omentum can also help in cushioning the abdominal organs, thus protecting them from external trauma.

Additionally, its positioning allows it to cover and support the intestines, contributing to the overall organization of the abdominal cavity. Beyond simply being a storage site, the greater omentum is involved in immune responses, often moving toward areas of infection or inflammation, but primarily, its identification with fat storage and its protective overlaying of the intestines defines its critical role in the anatomy of the abdomen.