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make a chart of the locations of the secretory cells and glands and what they secrete...

make a chart of the locations of the secretory cells and glands and what they secrete along the GI tract

Science   Anatomy-And-Physiology   
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Answer #1

These are the secretion of GIT.

1. Gastrin -

Site of release - G-cells of gastric antrum.

Action - H+ secretion by gastric parietal cells.

2. CCK - PZ ( cholecystokinin - pancreozymin )

site of release - J - cells of duodenum and jejunum.

Action - Contraction of gallbladder and relaxes sphincter of oddi.

3. Secretin -

Site of release - S- cells of duodenum.

Action - Pancreas and biliary HCO3- secretion.

4. Salivary glands -

site of release - Oral cavity.

Action - Saliva consists of amylase or ptyalin which convert the starch in to dextrins.

5. Somatostatin -

Site of release - GIT

Action - inhibit the release of GIT hormones and growth hormones.

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