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20 Cards in this Set
- Front
- Back
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Where does the esophagus?
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posterior to the trachea
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What does the foregut include
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esophagus and stomach
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Where does the esophagus priece the diaphragm?
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at the esophageal hiatus
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Where is the gastresophgeal sphincter sits?
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top of stomach
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What is gastresophageal sphincter also called?
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cardiac sphincter
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What is the cardiac sphincter reinforced by and what does it prevent
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diaphragm
regurgitation of acidic stomach |
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What are some of the things that can happen with Barrett's disease?
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-harding of esophagus
-possibly cancer -tooth decay |
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What is the volume of stomach
-when empty -when full |
50ml
4000ml |
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What are the large folds of the wall of the stomach called/
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rugae
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What are the 3 overlapping sheets of smooth muscle that the stomach is composed of?
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-circular layer
-longitudinal layer -oblique layer |
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What types of cells are in the stomach
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-goblet cells
-chief cells -stem cells -enteroendocrine cells -parietal cells |
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What do the parietal cells produce
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HCl acid
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What do the chief cells secrete
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pepsinogen
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What do the stem cells do
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divide to produce ne stomach epithelium
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What do the stem cells do?
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dived to produce new stomach epithelium
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Where are most of the specialized cells located in the stomach?
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gastric pits
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When food becomes digested enough what does it become?
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chime
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What is MMC
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migrating motor complex
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Explain MMC
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-complete contraction of stomach from top to bottom
-open pylorus -scrounging for chyme |
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What ar the two compounds that can be absorb across the stomach wall?
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alcohol & asprin
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