A scientist develops a mouse that lacks the ability to express CCK1 receptors. Compared to a normal mouse, which of the following would be expected to be increased?

A. gastric acid secretion
B. gallbladder contraction after a meal
C. cytosolic Ca++ in pancreatic acinar cells
D. firing of duodenal vagal afferents when food is in the lumen
E. gastric emptying
F. histamine release from ECL cells


ANS: E

Anatomy & Physiology

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