When would you expect the rate of acid secretion to be at its - ProProfs Discuss
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When would you expect the rate of acid secretion to be at its highest?

Experiments are conducted in human volunteers to measure the variations in gastric acid secretion throughout the day. 
1. At lunchtime while deciding which meal to eat.
2. About one hour after eating the meal.
3. Five minutes after eating the meal.
4. Two to three hours after eating the meal.

Asked by Christian, Last updated: Sep 17, 2021

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1 Answer

John Smith

John Smith

John Smith
John Smith

Answered Sep 09, 2016

About one hour after eating the meal-the peak rate of acid secretion usually occurs between one and two hours after eating the meal (the gastric phase). acid secretion is increased but to a lesser extent by thinking about food e.g. in a restaurant looking at a menu and smelling the food of other diners (the cephalic phase) and although this secretion is added to by the act of eating within the first few minutes of ingesting a meal the peak secretory flow is not achieved in such a short space of time. as food enters the intestine around two to three hours after eating, there is a further small increase in acid secretion, but again at its peak it is still less than in the gastric phase secretion - which has already subsided.
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