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The muscle of the inner layer is arranged in circular rings around the tract, whereas the muscle of the outer layer is arranged longitudinally. The stomach has an extra layer, an inner oblique muscular layer. [1] Between the two muscle layers is the myenteric plexus (Auerbach's plexus). This controls peristalsis.
The gastric folds consist of two layers: Mucosal layer – This layer releases stomach acid. It is the innermost layer of the stomach. [5] It is affected by the hormone histamine, which signals it to release hydrochloric acid (HCl). Sub-mucosal layer – This layer consists of different vessels and nerves, ganglion neurons, and adipose tissue ...
English: Diagram of alkaline Mucous layer in stomach with mucosal defense mechanisms Polski: Schemat budowy błony śluzowej żołądka z uwzględnieniem mechanizmów bariery śluzowo-alkalicznej 日本語: 粘膜防御機構を備えた胃の塩基性粘液層の図
Layers of the Alimentary Canal. The wall of the alimentary canal has four basic tissue layers: the mucosa, submucosa, muscularis, and serosa. Items portrayed in this file
Diagram of the alkaline mucous layer in the stomach with mucosal defense mechanisms. The gastric mucosa is the mucous membrane layer of the stomach, which contains the gastric pits, to which the gastric glands empty. In humans, it is about one mm thick, and its surface is smooth, soft, and velvety.
The outermost layer of the gastrointestinal tract consists of several layers of connective tissue. Intraperitoneal parts of the GI tract are covered with serosa . These include most of the stomach , first part of the duodenum , all of the small intestine , caecum and appendix , transverse colon , sigmoid colon and rectum .
Underlying the mucous membrane in the mouth is a thin layer of smooth muscle tissue and the loose connection to the membrane gives it its great elasticity. [5] It covers the cheeks, inner surfaces of the lips , and floor of the mouth, and the mucin produced is highly protective against tooth decay .
This image was selected as picture of the day on Wikimedia Commons for 3 October 2007. It was captioned as follows: It was captioned as follows: English: Diagram of the gastrointestinal tract