A scientist genetically engineers a mouse to lack the hormone secretin. Compared with a normal animal, which of the following would be expected to be increased in the mutant mouse?

A. pH of pancreatic ductular secretion
B. volume of pancreatic secretion
C. pH of duodenal contents
D. susceptibility to duodenal erosions and ulcerations
E. gallbladder contractibility


ANS: D

Anatomy & Physiology

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