Quick Quiz: Gastrointestinal regulation in esophagus and stomach

Fill-in Answer Correct False Correct Answer
1. During which phase of swallowing is respiration inhibited?
2. In Barrett's esophagus, the mucosa of the esophagus resembles the mucosa in this part of the GI tract.
3. Lack of muscle tone in this structure could cause gastro-esophageal reflux disorder (GERD).
4. Name the neurotransmitter released by neurons that stimulate acid secretion by parietal cells.
5. Gastrin stimulates the secretion of this paracrine from ECL cells.
6. Secretion of this paracrine/hormone is stimulated by increased [H+] in the lumen of the stomach.
7. This protein gets moved to the apical plasma membrane of the parietal cell when acid secretion is stimulated.
8. Cephalic phase stimuli are transmitted to enteric neurons in the stomach via parasympathetic preganglionic neurons traveling in the _______ nerve.
9. Food inhibits somatostatin secretion because it acts as a _______. (Hint: something that binds H+ ions)
10. Intestinal phase stimuli inhibit acid secretion by stimulating secretion of inhibitory hormones referred to as enterogastrones. Name a hormone that acts as an enterogastrone.

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