It is a thin membrane made up of areolar connective tissue and squamous epithelial tissue. Gastrointestinal tract, pathway by which food enters the body and solid wastes are expelled The stomach is the only organ in the digestive system to have three muscle layers
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The rest of the gastrointestinal tract, or gi tract, contains only two muscle layers.
The wall of the stomach is made of the same four layers as most of the rest of the alimentary canal, but with adaptations to the mucosa and muscularis for the unique functions of this organ.
The majority of the stomach is intraperitoneal and needs to be able to move freely, and thus has a serosa consisting of simple squamous epithelium (mesothelium) and a thin layer of connective tissue. Compared to other organs of the gi tract, the stomach is unique in that its muscularis externa features an inner oblique layer in addition to a circular and longitudinal layer Exterior to the submucosa is the submucosal meissner's plexus, which controls secretions and blood flow. The stomach is made of these five layers
This is the first and innermost layer or lining It contains the glands that release digestive juices These are called hydrochloric acid and pepsin This is where most stomach cancers start
This second layer supports the mucosa.
After you have chewed and swallowed your food, it passes down the oesophagus to the stomach The stomach churns up food and mixes it with acid and enzymes This breaks the food down into much smaller pieces This is how our bodies get the nutrients needed to give us energy and keep us healthy.
The layers of the stomach wall are similar to the rest of the gi tract with no modifications.