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19 Cards in this Set
- Front
- Back
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mucous neck cells |
stomach, secrete mucous to line stomach wall, protects the epithelial lining of the stomach from the acidic environment |
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Gcells |
stomach, releases gastrin into the bloodstream which stimulates parietal cells to secrete HCl |
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parietal cells |
stomach, secrete HCl which diffuses into the lumen of the stomach (keeps the stomach pH low), have many mitochondria to get lots of energy to manufacture HCl |
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chief (peptic) cells |
secrete pepsinogen (zymogen precursor to pepsin) |
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goblet cells |
small intestine, secrete mucous for lubrication |
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crypts of lieberkuhn |
small intestine, secret slightly basic intestinal juice |
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enterocytes |
small intestine, absorption of all macromolecules |
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lacteal |
within each villus of the small intestine, lymph vessel, site of lipid absorption |
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emulsification of fat |
separation of fat, function of the bile |
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bile |
used for emulsification of fat, exposes more of the lipid's surface area so that it can be degraded by lipases |
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CCK - cholecystokinin |
released with presence of chyme, causes gallbladder to release bile |
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secretin |
triggers release of pancreatic juice in response to acidic chyme |
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peptidases |
released by small intestine to hydrolyze proteins, ie. aminopeptidases and dipeptidases |
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enterokinases |
secreted from intestinal glands to convert trypsinogen to its active form trypsin |
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trypsin |
protein hydrolysis and activator of other zymogens, secreted by the pancreas |
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chymotrypsin |
protein hydrolysis, secreted as chymotrypsinogen, converted to active form chymotrypsin by trypsin, and hydrolyzes specific peptide bonds |
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carboxypeptidases |
protein hydrolysis, hydrolyzes terminal peptide bonds at carboxyl end and converted to active form by trypsin |
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diarrhea |
results from failure to reabsorb water |
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constipation |
results from excess water reabsorption |
