Stomach - muscular, elastic, pear-shaped bag that is located between the esophagus and the intestines, beneath the diaphragm. It changes size and shape according to is position of the body and the amount of food inside.

Entrance of Food

Food enters the stomach from the esophagus. The connection between the stomach and the esophagus is called the cardiac sphincter. The cardiac sphincter prevents food from passing back to the esophagus.

Stomach and Heart Burn

Heart burn is the sensation when stomach juices (gastric juice) is allowed to seep through the sphincter into the esophagus. Once the food enters the stomach, gastric juices are used to break down the food. Some substances are absorbed muscle lining of the stomach. One of the substances the stomach absorbs is alcohol.

Stomach Ending

The other end of the stomach empties into the duodenum (first section of small intestine.) The pyloric sphincter separates the stomach from the duodenum. The stomach is composed of five layers. Starting from the inside and working our way out

Illness and Problems Associated With the Stomach

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