Anatomy of Stomach
The stomach is a thick-walled, J-shaped muscular sac. The anterior and posterior surfaces are smoothly rounded with a peritoneal covering. The stomach is located in the upper abdominal cavity below the diaphragm and a lobe of the liver on the left side of our body. The bottom of our stomach is connected to the small intestine. The top of our stomach connects to a valve called the esophagus sphincter. The stomach primarily lies in the epigastric and umbilical regions.
Our stomach expands when full and deflates when empty. When the stomach is empty, the inside has small folds called rugae. Rugae allow the stomach to expand to accommodate large meals. Rugae grips the food inside the stomach to help physically break it down. The stomach is further divided into four regions: Cardia, Fundus, Body and Pyloric antrum.
Cardia
Cardia is a part where stomach joins with esophagus. It is located at the bottom of the esophagus. Food and liquids initially pass through the cardia before entering the stomach. It is also known as gastric cardia. The cardia surrounds the lower esophageal sphincter where the esophagus enters the stomach, has large numbers of cardiac cells that produce mucus which acts to protect the esophagus from gastric acid.
Fundus
The fundus of stomach is a rounded section next to the cardia. Fundus is a dome shaped part of the stomach that stores gas from digestion. It also holds food when our stomach become full. The fundus of stomach lies in contact with the left dome of the diaphragm.
Body
It is the largest section of our stomach. In the body, our stomach contracts and begins to mix food.
Pyloric antrum
It is the bottom part of your stomach. It includes the pyloric sphincter. This ring of tissue controls when and how the food and other contents stored in our stomach move to your small intestine.
Stomach
The stomach is a muscular organ that digests food in animals and humans. The stomach stores and breaks down the foods and liquids we eat before they move on to digestion. In this article, we are going to discuss the structure of the stomach, the position of the stomach in the human body, how the stomach performs the digestion process, and some common and serious disorders related to the stomach.
In this article, we will read about what the stomach is, the workings, the layers and workings of the stomach, the functions of the stomach, and common disorders related to the stomach.
Table of Content
- What is the Stomach?
- Anatomy of Stomach
- Diagram of Stomach
- Layers of the Stomach
- Working of the Stomach
- Functions of Stomach
- Common Disorders Related to Stomach
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