" /> stomach smooth muscle circular layer - CISMeF





Preferred Label : stomach smooth muscle circular layer;

Uberon definition : The middle layer of the muscularis; it is continuous with the circular layer of the esophagus, but is absent in the fundus and lies concentric to the longitudinal axis of the stomach; the circular layer is normally tonically constricted forming a functional pyloric sphincter, which controls the movement of chyme into the duodenum;

Uberon synonym : stratum circulare (tunica muscularis)(gaster); circular layer of gastric muscularis; stratum circulare gastris; middle circular muscle layer of stomach; circular muscle layer of stomach;

Uberon Function note : This layer wraps in a circular orientation around the pylorus, and is held in a constricted state normally. The normal constriction of this muscle is what creates the pyloric sphincter, which controls the movement of chyme into the duodenum. This layer is concentric to the longitudinal axis of the stomach. (note: chyme is a thick and acidic mixture of acidic digestive fluids and partially digested food, which moves from the stomach to the small intestine as digestion moves along the digestive tract.);

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The middle layer of the muscularis; it is continuous with the circular layer of the esophagus, but is absent in the fundus and lies concentric to the longitudinal axis of the stomach; the circular layer is normally tonically constricted forming a functional pyloric sphincter, which controls the movement of chyme into the duodenum

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04/05/2025


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