Table of Contents
Stomach Definition
The stomach is a muscular organ located in the upper abdomen that is responsible for breaking down food and digesting it. The stomach is divided into two parts: the small intestine and the large intestine. The small intestine is responsible for the absorption of nutrients from food, and the large intestine is responsible for the absorption of water from food.
The Stomach Structure
The stomach is a muscular organ that stores food, mixes it with digestive juices, and then slowly empties its contents into the small intestine.
- The stomach is divided into two parts, the upper stomach and the lower stomach.
- The upper stomach is called the cardiac stomach and the lower stomach is called the pyloric stomach.
- The stomach is located just below the ribcage on the left side of the body.
Histology of the Human Stomach
- The stomach is a muscular organ that is located in the upper abdomen. It is responsible for breaking down food and digesting it.
- The stomach is lined with a layer of mucous membrane, and the mucous membrane is covered with small, hair-like projections called villi.
- The villi increase the surface area of the mucous membrane, which allows the stomach to absorb more nutrients from the food.
- The stomach is also lined with glands that secrete digestive juices into the stomach. The digestive juices help to break down the food.
Cells of the Stomach
The stomach is a muscular, sac-like organ that churns and breaks down food. The stomach is located in the upper part of the abdomen, just below the diaphragm and above the small intestine.
The stomach has three parts: the cardia, the corpus, and the pylorus:
- The cardia is the uppermost part of the stomach and is where the esophagus meets the stomach.
- The corpus is the main part of the stomach and is where the stomach muscles churn and break down food.
- The pylorus is the lowermost part of the stomach and is where the stomach empties into the small intestine.
- The stomach is lined with a layer of mucous membrane that secretes digestive juices.
- The digestive juices contain acids and enzymes that break down food into smaller molecules that can be absorbed by the intestine.
The Stomach Diseases
1. The stomach is a muscular sac located in the left upper quadrant of the abdomen. It is a part of the digestive system and is responsible for the digestion of food;
The stomach is divided into two parts, the fundus and the corpus:
- The fundus is the upper part of the stomach and the corpus is the lower part.
- The stomach is covered by a layer of mucous membrane.
- The stomach muscles contract and churn the food to mix it with digestive juices.
- The food is then passed on to the small intestine for further digestion.
2. The stomach can be affected by a variety of diseases;
The most common diseases are gastritis, peptic ulcer, and stomach cancer:
- Gastritis is a condition in which the stomach lining becomes inflamed. This can be caused by a variety of factors, such as infection, medication, and lifestyle factors such as smoking and alcohol consumption.
- Symptoms of gastritis include nausea, vomiting, abdominal pain, and loss of appetite. Treatment for gastritis includes medications to reduce the inflammation and lifestyle changes such as quitting smoking and reducing alcohol consumption.
- Peptic ulcer is a condition in which there is a break in the lining of the stomach or small intestine. This can be caused by a variety of factors, such as infection, medication, and lifestyle factors such as smoking and alcohol consumption. Symptoms of a peptic ulcer include pain in the abdomen, nausea, vomiting, and loss of appetite. Treatment for a peptic
