The smooth muscle layer of the stomach wall that functions to churn and mix food and gastric secretions as well as to move food along the digestive tract to the intestines.
Comment:
[structure-note] "the muscularis externa in the stomach differs from that of other GI organs in that it has three layers of smooth muscle instead of two" xsd:string {source="WP"}
Synonyms:
exact_synonym:
gastric muscularis; muscle layer of stomach; muscularis externa of stomach; tunica muscularis (gaster); tunica muscularis gastris