Stomach

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 Explain the structure of stomach:-

The stomach is a J-shaped, thick-walled organ located between the oesophagus and small intestine. It consists of a dilated structure with four major parts. They are:

  • Fundus 
  • Body 
  • Antrum 
  • Pylorus 

Fundus:

The Fundus is the main opening of the stomach. It is also called a cardiac region. It is the region where the oesophagus terminates. The chewed food from the oesophagus first enters this region and is stored in the stomach. The function of Fundus is to churn and mix the chewed food. It consists of a dome-like shape. It is located near the diaphragm and left to the Cardiac. 

Body:

After the Fundus, the body of the stomach comes, which is the major part of the whole stomach. It is the storehouse of the stomach, where all the chewed food is stored. Along with this, all the actions of enzymes take place in the body of the stomach. 

Antrum: 

The antrum is also called a Pylorus Antrum. The main function of the antrum is to retain the food in the stomach for a longer time. The Pylorus is used to describe the termination part of the stomach. It is the finishing point of the stomach, from where the food merges into the small intestine. It firstly sends food to the duodenum part of the stomach, and then food slightly moves to the small intestine for further digestion. 

Pylorus 

It is the closing of the Stomach. From this part, the food enters the small intestine. 


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