Digest2 - Stomach Enlarged segment of digestive tract ....

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Unformatted text preview: Stomach Enlarged segment of digestive tract . Major functions: Other functions: Gastric Pits Branch into... Gastric glands secrete: Gastric Glands Mucous neck cells Secrete Act as stem cells. Parietal cells Secrete HCl & intrinsic factor. Chief cells Secrete pepsinogen. Enteroendocrine cells Secrete hormones (gastrin). Pepsinogen Pepsin HCl Chief cell Enteroendocrine cell Parietal cell Gastric Glands Intrinsic Factor Parietal cells secrete Intrinsic factor binds Vitamin B 12 Vitamin B 12 is absorbed in the distal small intestine Vitamin B 12 plays a role in DNA synthesis (particularly during erythropoiesis) Gastric Glands Gastrin (into the plasma) In response to food/stretch/nerve signals, enteroendocrine cells in fundic stomach secrete Secretory and muscular activity increase in the body and pylorus Gastrin travels thru the bloodstream to the body and pylorus Gastric Glands What about gastric juice could be dangerous to the stomach itself?...
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This note was uploaded on 11/10/2011 for the course LS 101 taught by Professor Abdul during the Spring '11 term at Montgomery College.

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Digest2 - Stomach Enlarged segment of digestive tract ....

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