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Secretin

Secretin

C017/6217

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Credit

EVAN OTO / SCIENCE PHOTO LIBRARY EVAN OTO / SCIENCE PHOTO LIBRARY

Caption

A molecular model of secretin, a peptide hormone secreted by S cells in the duodenum of the small intestine. As chyme enters from the stomach, secretin responds to the lower pH levels of the hydrochloric acid by signalling the pancreas to secrete a bicarbonate solution to neutralize the acidic contents. Additionally, secretin will stimulate the release of pepsin for protein digestion and glucagon to increase blood glucose levels. Atoms are coloured dark grey (carbon), light grey (hydrogen), blue (nitrogen) and red (oxygen).

Release details

Model release not required. Property release not required.

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