Human Biology, 14 Edition

Published by McGraw-Hill Education
ISBN 10: 1-25924-574-8
ISBN 13: 978-1-25924-574-9

Chapter 9 - Assess - Page 194: 11


Cholecystokinin (CCK), is a peptide hormone secreted by neuroendocrine cells of the duodenal mucosa . It causes the gall bladder to contract (pump) and the liver to release bile.

Work Step by Step

Bile is synthesized in the liver and stored in the gall bladder. The pancreas synthesizes pancreatic enzymes--amylase, lipase, trypsin and chymotrypsin.
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