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Stomach

24.7--Stomach

TermDefinition
Stomach J-Shaped enlargement of GI tract. Covers epigastric, umbilical and left hypochondriac regions of abdomin; connects to duodenum
Cardia Surrounds superior opening of stomach
Fundus Rounded portions; superior and left of cardia
Body Central Portion
Pyloric Part Pyloric antrum, pyloric canal, pylorus (body-->duodenum)
Rugae Large folds; empty stomach
Functions of Stomach 1) Mixes Saliva, food, and gastric juices = chyme 2) Reservoir for food 3) Gastric juic secretion with HCL, pepsin, intrinsic factor, and gastric lipase 4) Gastrin into blood
Cardioesophageal Junction In between stomach and esophagus; mucosa abruptly changes
Surface Mucous Cells Secrete mucus; form protective barrier that prevents digestion of stomach
Parietal Cells HCL secretion --> kills microbes in food; denatures proteins; turns pepsinogen into pepsin
Chief Cells Secretes pepsinogen, gastric lipase and intrinsic factor;
Created by: 100000434525601
 

 



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