How does the stomach work?

The stomach is a muscular hollow organ. It takes in food from the esophagus ( esophagus or food pipe ), mixes it, breaks it down, and then passes it on to the small intestine in small portions. The stallion digestive organization is made up of one brawny tube extending from the mouth to the anus. The stomach is an enlarge pouch-like part of this digestive tube. It is located on the leave side of the upper berth abdomen and shaped reasonably like an outsize comma, with its start pointing out to the left. The digest ’ s condition and size deviate from person to person, depending on things like people ’ randomness sexual activity and build, but besides on how much they eat. At the indicate where the esophagus leads into the abdomen, the digestive tube is normally kept shut by muscles of the esophagus and diaphragm. When you swallow, these muscles relax and the lower end of the esophagus opens, allowing food to enter the digest. If this mechanism does not work by rights, acidic gastric juice might get into the esophagus, leading to heartburn or an ignition. The upper-left function of the digest near the opening curves up towards the diaphragm. This share is called fundus. It is normally filled with air out that enters the stomach when you swallow. In the largest part of the stomach, called the torso, food is churned and broken into smaller pieces, assorted with acidic gastric juice and enzymes, and pre-digested. At the exit of the digest, the body of the stomach narrows to form the pyloric canal, where the partially digested food is passed on to the belittled intestine in portions.

The stomach wall is made up of several layers of mucous membrane, connective tissue with blood vessels and nerves, and muscleman fibers. The muscleman layer alone has three unlike sub-layers. The muscles move the contents of the stomach around so vigorously that solid parts of the food are crushed and land, and mix into a fluent food pulp. The inner mucous membrane ( lining ) has big folds that are visible to the bare eye. These folds run toward the exit of the abdomen, providing “ pathways ” along which liquids can promptly flow through the stomach. If you look at the mucous membrane under a microscope, you can see lots of bantam glands. There are three different types of glands. These glands make digestive enzymes, hydrochloric acerb, mucus and bicarbonate. Gastric juice is made up of digestive enzymes, hydrochloric acid and other substances that are crucial for absorbing nutrients – about 3 to 4 liters of gastric juice are produced per day. The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice besides kills bacteria. The mucus covers the abdomen rampart with a protective coat. together with the bicarbonate, this ensures that the stomach wall itself is not damaged by the hydrochloric acerb .

Sources

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  • Pschyrembel W. Klinisches Wörterbuch. Berlin : De Gruyter ; 2014 .
  • Schmidt R, Lang F, Heckmann M. Physiologie des Menschen : massachusetts institute of technology Pathophysiologie. Heidelberg : springer ; 2011 .
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