The stomach, part of the gastrointestinal tract, is a digestive organ located between the esophagus and the duodenum.
It has a 'J' shape, and features a lesser and greater curvature. The anterior and posterior surfaces are smoothly rounded with a peritoneal covering.
The greater curvature forms the long, convex, lateral border of the stomach. Arising at the cardiac orifice, it arches backwards and passes inferiorly to the left. It curves to the right as it continues medially to reach the pyloric antrum (opening to the pylorus).
The fundus is the bulge of the greater curvature of the stomach superior to the esophageal junction.
The stomach has a greater and lesser curvature. The greater curvature is the more lateral of the two.
Greater Omentum
The greater omentum arises from the greater curvature of the stomach. It is a large apron-like structure made of fatty tissue that hangs down over the intestines.
The attachments of the greater omentum are: # The Dorsal Abdominal Wall # The Greater Curvature of the Stomach
The greater omentum
The greater omentum is located in the stomach. It is like an apron that extends from the greater curvature of the stomach to the transverse colon. Its purpose is for fat deposition, immune contribution, and infection and wound isolation. The lesser omentum, on the other hand, extends from the liver to the lesser curvature of the stomach. There is no known function of the lesser omentum.
Greater Omentum
Curvatures of the stomach:Lesser Curvature forms the right border of stomach, which extends from cardiac orifice to the pylorus. The lesser omentum is attached to lesser curvature and the liver. The lesser omentum forms the anterior boundary of the omental foramen and contains hepatic artery, portal vein and bile duct within its lower border.Greater Curvature extends from left of cardiac orifice, over dome of fundus, and along left border of stomach to the pylorus.The gastrosplenic ligament attaches to the upper part of the greater curvature and the greater omentum attaches to its lower part.
There is no anatomical sphincter present at junction between stomach and esophagus. The angle formed by greater curvature of stomach demarcates the two organs.
The greater and lesser curvatures are the two main curved surfaces of the stomach. The greater curvature serves as an attachment point for the greater omentum and provides a larger surface area for the stomach, facilitating the storage and mixing of food. The lesser curvature, on the other hand, connects to the liver via the lesser omentum and plays a role in the stomach's blood supply and movement during digestion. Together, they help in the mechanical and chemical processing of food.
The greater omentum attaches to the stomach and covers the intestines in the abdominal cavity. It plays a role in protecting and isolating organs in the abdomen against infection and injury.