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18 Cards in this Set
- Front
- Back
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The stomach is divided into the cardia, fundus, and pylorus based on what?
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What type of glands they contain
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Prominent longitudinal folds that allow stomach distension when filled
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Rugae
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Typically one/several glands open into a single pit in the stomach
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several
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HCL is produced by
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parietal cells
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Pepsin is made from pepsinogen which is produced by the
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Chief Cells and HCl - pH must be <5
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The glycoprotein that binds to vitamin B12 and is essential for it's absorption
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Intrinsic factor
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What dxs are seen in the absence of parietal cells (2
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Achlorydia, Pernicious anemia
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A risk of using H2 receptor antagonists for a long time is that they
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can cause Vit B12 deficiency
H+ pump inhibitors are safer |
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LPS antigens are presented on this bacteria and mimic human gastric epithelial cells
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H. pylori
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In an actively secreting parietal cell, the number of microvilli in the canalliculli inc/dec
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increases
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Name four substances that activate HCl secretion
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Gastrin!, H2 histamine, ACh,
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What cells rest on the basal lamina and secrete their products into the lamina propria
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Enteroendocrine cells
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Cardiac glands secrete
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Mucus fuck me this is so boring I want to die they protect from esoph. reflux
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Pyloric glands secrete
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mucus and help protect the pyloric mucosa
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Surface mucous cells are renewed about every
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3-5 days
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Cells of the fundic glads have a relatively long lifespan, WHICH gland cells have the longest lifespan
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Parietal cells 150-200 days
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In what layer of the stomach does meissners plexus lay
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The submucosa
it works on glands |
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In what layer of the stomach does the myenteric plexus lay
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Between the layers of the muscularis externa - it controls motility aka movmement of shit
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