During the cephalic phase of gastric stimulation, which of the following does NOT occur?
A. HCl is secreted into the gastric lumen.
B. Pepsinogen is secreted into the gastric lumen.
C. Seeing, smelling, and/or tasting food reflexively increase(s) gastric acid secretion.
D. Parasympathetic stimulation of secretory cells in the gastric mucosa occurs.
E. Gastrin is secreted into the gastric lumen.
Answer: E
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