Which of the following represent a short-loop neural reflex in the digestive system?
A. The hormone motilin stimulates migrating motor complexes in the small intestine.
B. The sight of foods stimulates the vagus nerve and increases HCl secretion in the stomach.
C. Cholecystokinin (CCK) from the duodenum inhibits gastric secretions.
D. Peptides in the stomach stimulate the release of histamine via signals from the enteric nervous system.
E. The parasympathetic nervous system releases acetylcholine (ACh) that depolarizes smooth muscles.
Ans: B. The sight of foods stimulates the vagus nerve and increases HCl secretion in the stomach.
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