Gastric bypass involves reducing the size of the stomach and bypassing part of the small intestine, where digestion occurs. People eat less and absorb fewer calories as a result.

胃肠分流术包括缩小胃容积以及与部分小肠形成旁路，两者均参与消化过程，进而导致人们吃得更少或吸收更少的热量。

youdao

This article introduces the physiology, the physiological regulation and the clinic significance of the gastric or intestine movements.

本文介绍了胃肠运动的生理、生理调节、临床研究；

youdao

Gastrointestinal tract is very sensitive to coldness stimulation. Secreted gastric acid increases and stomach intestine shrinks convulsively. The resistance and adaptability decrease accordingly.

胃肠道对寒冷的刺激非常敏感，受冷后胃酸分泌增加，胃肠发生痉挛性收缩，抵抗力和适应性随之降低。

youdao

This may be due to surgery to your stomach or small intestine (such as gastric bypass surgery), abnormal bacterial growth in your small intestine, or an intestinal disease, such as Crohn's disease or celiac disease, that interferes with absorption of the vitamin.

CNN: Vitamin deficiency anemia

Hospitals can make money from all bariatric procedures, including gastric bypasses (in which the stomach is partitioned and the upper part connected directly to the small intestine), but the gastric band is a rare example of an opportunity for device-makers to profit from weight loss.

ECONOMIST: Diet products