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<p>(D cells), thus reducing their release of somatostatin and reducing background inhibition of gastrin release.</p>

<p><big>Activation of gastric chief cells</big></p>
<p><a href="page.php?w=Gastric_chief_cells">Gastric chief cells</a> are primarily activated by ACh. However the decrease in pH caused by activation of parietal cells further activates gastric chief cells. Alternatively, acid in the <a href="page.php?w=duodenum">duodenum</a> can stimulate <a href="page.php?w=S_cell">S cell</a>s to secrete <a href="page.php?w=secretin">secretin</a> which acts</p><p>
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