Omentum
Omentum
The Omentum (pronounced: oh-men-tum) is a significant structure within the abdomen that plays a crucial role in the body's immune response and metabolic processes.
Etymology
The term "Omentum" is derived from the Latin word "omentum," which means "fat apron."
Definition
The Omentum is a double layer of the peritoneum that extends from the stomach and adjacent part of the duodenum to other abdominal organs. It is divided into two main parts: the Greater Omentum and the Lesser Omentum.
Greater Omentum
The Greater Omentum is a large apron-like fold of visceral peritoneum that hangs down from the stomach. It contains adipose tissue, which stores fat, and immune cells that help fight infections in the abdomen.
Lesser Omentum
The Lesser Omentum is a smaller peritoneal fold that extends from the liver to the lesser curvature of the stomach and the beginning of the duodenum.
Function
The Omentum serves several important functions in the body. It helps limit the spread of infections in the abdomen by walling off areas of infection, known as abscesses. It also stores fat, which can be used as an energy source, and contains immune cells that help fight infections.
Related Terms
- Peritoneum: The serous membrane lining the cavity of the abdomen and covering the abdominal organs.
- Abdomen: The part of the body that contains the stomach, small intestine, colon, rectum, liver, spleen, pancreas, kidneys, appendix, gallbladder, and bladder.
- Abscess: A confined pocket of pus that collects in tissues, organs, or spaces inside the body.
External links
- Medical encyclopedia article on Omentum
- Wikipedia's article - Omentum
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