QuestionSBA
QuestionChoice
Smell, thought, sight and taste of food stimulate the brainstem and begin the cephalic phase of gastric secretion.

This triggers the secretion of Gastrin into the bloodstream and induces secretion by parietal and chief cells.

The gastric phase of gastric secretion occurs after this phase - where stomach distension due to the arrival of food triggers increased gastric secretions.
10001893
b
Smell, thought, sight and taste stimulate this phase
QuestionChoice
The gastric phase is the second phase of gastric secretion.

The cephalic phase is first, followed by the gastric and the intestinal phase.
10001896
e
It is the last phase of gastric secretion
QuestionChoice
The gastric phase of gastric secretion does last 3 - 4 hours.

It occurs after food arrives in the stomach, causing distention. This sends signals via the vagus nerve to the brainstem, which in turn stimulates stomach secretions.
10001892
a
This phase lasts 3 - 4 hours
QuestionChoice
Gastrin is released into the bloodstream during the cephalic phase of gastric secretion.

The cephalic phase is the first phase of gastric secretion. It is triggered by sensory inputs such as smell, thought, sight and taste of food.
10001894
c
Gastrin is released into the bloodstream during this phase
QuestionChoice
Secretin is released by the duodenum in the final phase of gastric secretion, the intestinal phase.

It is secreted to inhibit gastric secretion as food has arrived in the small bowels - there is no need for gastric (stomach) secretions anymore.
10001895
d
Secretin is released
Concept
Chapter
2693
3984
Cells of the Gastrointestinal tract
Topic
136
Gastroenterology
12925
Which of the following statements is correct about the gastric phase of gastric secretion?
a