duodenum
Gastric pits are located in the stomach.
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The duodenum is the section of the small intestine that is attached to the stomach.
A lesion of the mucosal lining of the stomach is called a gastric ulcer.
Gastric acid
A gastric bypass consists of two main changes. One is to cut down the stomach so that it can only hold about an ounce of food. The other change is to bypass a portion of the small intestine so that less food is absorbed. Typically anywhere from 8 to 14 inches of intestine is bypassed in this procedure.
Stomach
Small intestine (duodenal) and stomach (gastric)
Ulcer of stomach known as Gastric ulcer. Ulcer in small intestine known as small bowel ulcer
The rugae gradually smooth out as the stomach fills, permitting stomach distension. A cross section of the stomach lining reveals that in between the rugae are gastric pits, which are the openings of the gastric glands.
Small intestine
The gastric sleeve is the band they put around a section of your stomach. By placing this band there, it makes your stomach smaller, and therefore you will not eat as much food.